User Manual for the STUDIO EMS System
Congratulations on your decision for the eaglefit STUDIO EMS System.
This high-quality training device for electrical muscle stimulation was developed with extensive expertise and competence so that you can perform highly efficient EMS fitness training.
To achieve the greatest possible benefit and, above all, to exclude dangers and risks, you should definitely read this manual and follow the described rules of conduct.
We wish you lots of fun with the eaglefit STUDIO EMS System.
Your eaglefit Team
Safety Instructions
Intended Use
The eaglefit STUDIO EMS System is a training system based on highly efficient electrical muscle stimulation (EMS) and was developed for studio use under the supervision of a trainer with the appropriate expertise. By combining the dry suit, the HUB, the box, and the eaglefit STUDIO EMS app, you can optionally conduct EMS personal training or group training with up to 10 clients simultaneously. This user manual will guide you step by step through the training and handling and provide valuable tips and advice for your EMS training. Please ensure that the manufacturer or your trainer instructs you in the proper use before the first use.
As a certified training provider, we also offer training for EMF expertise according to the Low Voltage Installation and Safety Ordinance (NiSV).
You can find our training offer here: To the Training
To operate your eaglefit STUDIO EMS System, please observe the NiSV* effective since 01.01.2021.
The eaglefit STUDIO EMS System is exclusively a training and fitness device, not a medical product.
The eaglefit STUDIO EMS systems comply with the legal and technical requirements of the Radiation Protection Ordinance for operating devices that apply non-ionizing radiation to humans for cosmetic or other non-medical purposes according to § 3 paragraph 3 NiSV. There are several requirements (training, proof of expertise, installation, notification, etc.) that the manufacturer has taken into account. We support you with the appropriate documents and recommendations.
*Regulation for Protection Against Harmful Effects of Non-Ionizing Radiation in Human Applications
Improper Use
Read the user manual and all information and instructions carefully to avoid personal injury and property damage and to prevent dangerous situations. If you do not follow the instructions and proper handling guidelines, eaglefit GmbH assumes no liability for resulting personal or property damage. In such cases, the warranty/guarantee also becomes void.
Please always check your eaglefit STUDIO EMS system for proper function and damage before use and contact the manufacturer or your dealer immediately if you notice anything unusual.
Training with the eaglefit STUDIO EMS System may only be performed in a dry environment. Avoid environments with very high humidity where your clients could come into contact with water (e.g., in the rain, near bathtubs, etc.).
Persons under 14 years of age, those with heart problems or other cardiovascular diseases, electrical implants, metabolic diseases (e.g., diabetes type I or II, diseases of the thyroid, liver, or kidney), cancer, an abdominal wall or inguinal hernia, pregnancy, or undergoing chemotherapy MUST NOT perform this training! We recommend starting EMS training only in adulthood.
Here you can find our product safety data sheet: to the safety data sheet
Risks and contraindications
Although no cardiac arrhythmias have ever occurred during training with an eaglefit STUDIO EMS system, the law requires warning of a residual risk. In case of existing cardiac arrhythmia, training with the STUDIO EMS system is not recommended, as it may pose a life-threatening risk.
Absolute contraindications
- Acute illnesses, bacterial infections, or inflammatory processes
- Recent surgeries (< 2 months)
- Arteriosclerosis, arterial circulatory disorders
- Stents or bypasses that have been active for less than 6 months
- Untreated high blood pressure
- Diabetes mellitus
- Pregnancy
- Electrical implants, e.g., pacemakers
- Tumor or cancer diseases
- Bleeding disorders, bleeding tendencies (hemophilia)
- Neuronal diseases, epilepsy, or multiple sclerosis
- Abdominal wall or inguinal hernias
- Cardiac arrhythmias
Relative contraindications
- Acute back pain without diagnosis
- Acute neuralgias, herniated discs
- Implants (prostheses)
- Diseases of internal organs (especially kidneys)
- Cardiovascular diseases
- Epilepsy (seizure-free for more than 12 months)
- Motion sickness
- Large fluid accumulations in the body, edema
- Open skin injuries, wounds, eczema, burns
- Varicosis, varicose veins
- Acute influence of alcohol, drugs, intoxicants
- Medication intake
If there is an absolute or multiple relative contraindications, the eaglefit The STUDIO EMS System must not be used. If training is conducted despite existing contraindications, it can lead to anything from minor injuries to death. We explicitly point out that no training is allowed if any of the listed contraindications are present.
Before the first training session, new customers must be informed about contraindications in an anamnesis interview. In case of doubt, please advise them to seek medical advice to determine if EMS training is possible for them.
Electrical Hazards
If you find damage to any of the components, you must not use the eaglefit Do not use the STUDIO EMS System. To avoid damage to materials or cables, you should handle it with extreme care. This means:
- Never use the eaglefit STUDIO EMS System in wet environments.
- Do not clamp or kink the cables and do not place heavy objects on them.
- Customers must remove all piercings or similar items in the training area before training.
Damages must be reported to the manufacturer. They will then decide on the further procedure.
Meaning and Functionality
Training using electrical muscle stimulation (electromyostimulation), also called EMS training, is based on the targeted activation of striated muscles through electrical impulses. This simulates natural muscle activation. Through this activation, muscle fibers contract without receiving a signal from the central nervous system (CNS). Normally, the commands for contraction come from the brain. During physical exertion, these electrical impulses are sent to the muscles via nerves. Because the impulses in EMS training are so similar to those from the CNS, the muscle cannot distinguish their origin, resulting in a contraction, i.e., the contraction command to the muscle comes via the electrodes integrated into the eaglefit STUDIO EMS Suit. In EMS training, rhythmic stimuli or impulses act on the muscles to be trained, causing targeted tension and relaxation. In physiotherapy, usually only individual muscles or muscle groups are trained with electrical stimuli, without performing additional movements or fitness exercises.
For this reason, we have combined full-body EMS training with targeted exercises. This also trains coordination. The strength increase can be translated into targeted movement. Additionally, holistic training strengthens agonists, antagonists, and stabilizing muscles, which are difficult to reach and influence with conventional training. This prevents muscular imbalances that can occur with one-sided training of individual large muscle groups.
Furthermore, simultaneous muscle activation can prevent or correct compensatory postures, avoiding misloads. Thanks to the possibility of incorporating additional exercises during EMS training, intra- and intermuscular coordination as well as motor skills can improve. Another positive effect of the additional exercises is the adaptation of tendons, ligaments, and joints to the achieved muscle strength gains. Since heavy weights are not needed for muscle contraction, this form of full-body training is very joint-friendly.
Observed positive effects of EMS training
EMS and movement
- Unlike static work, dynamic muscle activity leads to improved blood flow and lymph circulation
- Physical activity improves tendon tensile strength and joint cartilage supply
- Tendons, ligaments, and joint cartilage are strengthened; mineral content and bone volume increase
- Especially eccentric strength training affects connective tissue (tendons and ligaments)
- Tendon and ligament injuries can be healed faster through targeted activity
- These changes make the trainee's body more resilient and protect it from injuries
EMS and functional training
- Training of the whole body (muscles, tendons, ligaments)
- The focus is on learning and performing the movement
- Based on stabilizing the body and especially the core muscles
- Can be supported with different training equipment (e.g., Sling-Trainer, balance pad, kettlebell, gym ball)
EMS and Sling training
- Exercises for the whole body and isolation exercises for individual muscles
- The load intensity can be easily varied by the angle to the Sling-Trainer's anchor point
- Training of stabilizers through unstable grip ropes, which is intensified by a pulley
- High exercise variety through the pulley
- Low space requirement
- Easy setup and takedown
EMS and outdoor training
- The focus is on training with your clients. You can train outside in the fresh air in small or larger groups
- Exercises for the whole body
- Exercise intensity is varied by your own body weight, terrain shape, or everyday objects
- Psychological additional effects from training outdoors
- Motivation through variety
Quick Start Guide
Quick start guide for your new eaglefit STUDIO EMS system
- Charge Box and HUB until the LED lights green
- Download eaglefit STUDIO App in the app store here
- In personal training, create a profile for each client under “Individual” with “Create New”
- Hand the Suits to the trainees so they can put them on (wear either no clothing under the Suit or heavily moistened functional clothing)
- Connect HUB to tablet via Bluetooth
- Turn on one or more boxes (press lightly for 2 seconds with your index finger in the small indentation between the logo and LED), attach to the Suit. Connected boxes are indicated by a small black dot under the number in the position bar 1-10 in the app. Each STUDIO box has a fixed number from 1-10, found on the back (e.g., KA09)
- Select the setting for the planned training (Fitness / Cardio, etc.) under “Parameters,” then press “Start”
- Adjust the muscles of each trainee stronger by exclusion and fine-tune with the plus and minus buttons if necessary
- Start training, stop after 20 minutes
- Save settings by exiting the app with the "Back button" at the top right corner
- Make sure to drink enough water before, during, and after training, at least 1/2 liter more than usual
- Take at least 48 hours rest (max. 1 training per week for the first 10 weeks)
Usage Tips
How to properly turn the box on/off:

First Use of the Box and the App
Charging the Box and HUB
Before you start training, please download and install the eaglefit STUDIO EMS App from your app store by searching for “eaglefit” or “eaglefit STUDIO EMS.”
Before first use, you must fully charge the battery of the box and the HUB. Our batteries have overcharge protection, so you cannot “overcharge” them. Use the supplied USB cable and the 220V power adapter for charging. While charging, the box indicator lights red. When fully charged, the indicator lights green.
Download the eaglefit STUDIO EMS App from your app store:

Login Area
First Start
After launching the app, you will reach the login area where you can enter your username and password to access the app. The login details are provided with your order or can be requested later via “Request login details” if needed.
Next, you proceed to product selection and choose whether you want to train with the Base Suit, the EMS PANTS, or the PRO Suit.
Then you reach the main screen. Before training in “Individual” mode, you can search for a profile, create a new one, or switch modes using the 3 buttons at the top left.
If you have already created profiles, they will be displayed. Select an already saved profile or add a new profile under which you can save settings (impulse strength per muscle, etc.) later.
After pressing “OK,” you reach the main menu with the preset settings of the green-highlighted profile. Changes are also saved there if you leave this page later using the "Back button" in the upper right corner.
App explanation
The app is designed so you can train with up to 10 customers simultaneously. In the “individual” setting, all settings and parameters of an impulse type (Fitness/Metabolism/Relaxation/Individual) are saved in the user profiles.
The profile name can, for example, consist of the customer name and “Relax1” or “Muscle building.” Customer data is stored only on your tablet in accordance with GDPR. Therefore, you must create separate profiles on the tablet. The app saves the last used settings under the logged-in profile as soon as you leave the main menu using the "Back button" in the upper right corner.

For the first login, click “Create profile.”
ESTABLISHING THE BLUETOOTH CONNECTION
To establish the Bluetooth connection, the HUB must be turned on; please tap “Bluetooth” at the top right.
Communication between the app and your HUB is established when a Bluetooth connection is made.
The HUB communicates with your device via Bluetooth and then automatically distributes the settings to the individual boxes.

In the following view, select “Scan.”

You will receive a list of available Bluetooth devices nearby. Please select “TMK28S-Kx” to connect to the HUB.

Requirements for a Bluetooth connection
- The HUB must be charged and turned on. You can tell by the bright LED light
- Turn on the HUB by pressing the button (a slight indentation in the center) for 2 seconds. The LED lights up
- Your location must be enabled for the app so that the Bluetooth signal can be processed correctly
- You will NOT find the HUB in your usual Bluetooth settings on your phone because we use Bluetooth Low Energy (BLE)
Navigation and settings of the EMS impulses

Synchronization - In this mode, you can set up to 10 people simultaneously. Profiles cannot be saved/loaded. Either all participants or those you have marked are selected and set with the same values simultaneously.
Settings under “Parameters”
The parameters are already preset with default settings. When you click + or –, you can vary the parameters highlighted in black.
The following programs (“modes”) are already preinstalled on the eaglefit STUDIO app:
Fitness
Please select the setting “4/2,” meaning a pulse duration of 4 seconds and a 2-second pause. Ideally, your participants should contract the muscles for 4 seconds during training and relax them for 2 seconds.
The fitness program is optimal for building the large-volume white skeletal muscles. They are best trained with 5-12 repetitions per muscle group at about 80% of the trainee's maximum strength. The impulses are applied to the respective muscle group at a frequency of 85 Hz without stressing the joints, ligaments, or tendons with heavy training weights. The pulse width in this program is 350 µs.
Fitness training should be combined with exercises and can be well supported, for example, with sling training.
Metabolism/Cardio
The metabolic program, which trains the red endurance muscles, can be specifically used for muscle toning. The activation of slow-twitch muscle tissue breaks down fat and increases muscle definition. The training frequency is 7 Hz with a pulse width of 350 µs.
This program is ideal for warming up and improving circulation and metabolism. The metabolism training should ideally be combined with endurance exercises such as:
- Nordic walking
- Jogging
- Cycling
- Exercises on cardio machines
Relaxation
Please select the setting “1/1”, which means a pulse duration and a pause of 1 second each.
This program produces gentle muscle twitches and promotes muscle recovery, faster regeneration, and is also used for functional restoration after illnesses. At a training frequency of 100 Hz and a pulse depth of 150 µs, tension is released and the muscles are supplied with nutrients.
Your clients can use the relaxation program for 5-10 minutes after an intense training session (with or without EMS) or also after a strenuous day for 10-30 minutes at a moderate intensity, for example simply lying down.
Individual
Choose the settings individually according to the preferences of the trainees or according to the therapeutic recommendations they bring.
Advanced users can freely set all parameters (pulse frequency, pulse depth, pulse duration, pause, and training duration) with this program. Here, a frequency of 1-120 Hz and a pulse depth of 50 – 400 µs are possible.
Video training
In this program, trainees can use the illustrated body to complete a preset training by you and follow the exercises directly, or they can use it as a placeholder for their very own individual training. The special feature is that you can choose a different frequency and pulse depth for each training. Simply hold your finger over the desired exercise for 2-3 seconds until the preview image lifts, then you can drag it into the row below and arrange it. In the same way, you can also remove exercises from the row again.
Workout
This program was specially developed for guided training, group sessions, and also for group training at home. The training frequency is 85 Hz with a pulse depth of 350 µs. The pulse duration of 30 seconds and the pause time of 15 seconds are already preset.
Fat burning
Please select the setting "4 / 2", which means a pulse duration of 4 seconds and a pause of 2 seconds. In this special program, you combine the benefits of the fitness and metabolism programs. During the active phase, your clients train at 60 Hz for maximum strength, and in the passive phase (pause phase), the endurance muscles are stimulated at 7 Hz. This way, you challenge both muscle fiber types in one program.
Pulse depth
With “pulse depth” you can set how long the impulse lasts that you set under “frequency.” This value can only be configured in the “Individual” parameter. A single electrical impulse can last 50-400 µs.
The higher this value is set, the deeper the impulse penetrates the muscle. For example, you can optimally target large muscles such as the thigh muscles, gluteal muscles, or back muscles with a pulse depth of 350 µs.
Pulse duration
Duration of the impulse in seconds (indicated by a green number counting down during training).
Pause
Length of the break during training, 1-30 seconds (indicated by a red number counting down).
Training
Duration of a training session; 1-40 minutes.
Frequency
The number of impulses per second. For example, in the training program “Fitness,” the muscles contract and relax 85 times per second.
Putting on and taking off
the eaglefit STUDIO EMS Suit.
The eaglefit STUDIO EMS Suit is available in sizes XXS to 4XL. It is important to choose a perfectly fitting size for your customers so that the electrodes lie close to the body. The suit can be used as both a dry suit and a wet suit. When used as a dry suit, it is worn directly on bare skin without underwear or other (sports) clothing. The electrodes do not need to be moistened; they should be placed directly on the muscles to be stimulated. The close contact with the skin ensures optimal transmission of the current to the muscle.
With heavy body hair or very dry skin, stimulation may be impaired. In this case, you can lightly moisten the skin in the affected areas with a cloth or use our electrode gel. Alternatively, damp functional clothing can be worn. A suit can be used by multiple people consecutively if they wear functional underwear underneath.
The eaglefit STUDIO EMS Suit is closed with the zipper on the back. Simply close the zipper using the attached cord and secure it with the Velcro fastener. This prevents it from opening automatically. If the suit does not fit well in some areas, recommend your customers use the supplied Velcro straps and the hip belt for those spots. Alternatively, tight-fitting clothing can be worn over the eaglefit EMS Suit to achieve the same effect.
After training, open the zipper and step out of the eaglefit STUDIO EMS Suit. Then wash the Suit according to the washing instructions or hang it on a clothes hanger.
The training/exercises
In general: If you feel unwell, stop training immediately and consult a doctor if necessary. Never train if the person training feels unwell or is sick.
If there are problems or malfunctions with the eaglefit STUDIO EMS system, the training must be stopped. Contact the manufacturer in case of technical issues.
1. Warm-up
Before an EMS training – as with any fitness training – the muscles should be prepared for the upcoming load. Warming up leads to the following effects:
- Conductivity between electrodes and skin increases with light sweating
- Increase in core body temperature
- Improvement of energy supply processes in the muscle
- Increased production of joint lubricant
- Increase in motivation and concentration on the upcoming training
We recommend a short endurance session to warm up, such as some jumping jacks, burpees, or 3-5 minutes on a stationary bike.
2. Training/Exercises
In general, you can perform all movements and workouts with the eaglefit STUDIO EMS Suit in dry weather, both indoors and outdoors. Your imagination is the only limit. Jogging, boxing, yoga, sling training, functional training, HIIT, or bodyweight training. Only moisture (e.g., rain) should be avoided with the Suit.
As a suggestion, the eaglefit STUDIO EMS Suit comes with a poster showing exercise options for the entire body using your own body weight.
3. Stretching
After the workout session, the person training should stretch – possibly combined with the “Relaxation” program.
Stretching has the following effects:
- Reduction of muscle tone
- Improved breakdown of metabolic products
- Improved muscle regeneration
- Promotion of mobility
Washing and hygiene instructions
Before washing the eaglefit STUDIO EMS Suit, please remove the Box.
Proceed as follows:
1. Open the Velcro fastener

2. Pull the Box upwards

3. Remove the Box

Please clean the Box and the HUB only with a soft cloth.
We recommend hand washing for the eaglefit STUDIO EMS Suit. Alternatively, you can wash the Suit in a laundry bag in the washing machine on a gentle/delicate cycle at 30 °C. Close the zipper and all Velcro fasteners beforehand.
We recommend using a mild detergent (e.g., ECOVER or Frosch Color). Never use caustic solvents/abrasives, disinfectants, or detergents with additives such as chlorine or bleach. If the suit is still too wet after washing, you can spin it at a maximum of 900 rpm in the spin cycle. To dry, simply hang the suit on a hanger and let it air dry – preferably with the electrode pairs facing outward. Dry the eaglefit Never put the STUDIO EMS Suit in the dryer and never expose it to direct UV radiation. This can cause damage to the material.
The following washing symbols can be found on the eaglefit STUDIO EMS Suit and should be observed:

Disposal and recycling
The eaglefit STUDIO EMS Suit, the box, and the HUB contain electrical components. Electronic devices are valuable materials and should not be disposed of in household waste. Dispose of the product at the end of its life according to applicable legal regulations. This fulfills your legal obligations and contributes to environmental protection.
In all countries of the European Union, there are collection points for recycling electrical and electronic devices. You can obtain information about these collection points from your local waste disposal authority or from the retailer where you purchased this product.
Instructions for safe removal of batteries or accumulators:
If you want to dispose of the box, you can remove the battery by loosening the 4 cross screws on the back under the foil and unplugging the battery.
- Warning: Make sure the battery is completely discharged
- Carefully remove the battery or accumulator
- The battery or accumulator and the device can now be disposed of separately
Battery type: LiIo; 3.7 V, 2,000 mAh. Chemical system: lithium-ion battery
Technical data
| HUB | |
|---|---|
| Connection | Bluetooth version 4.2; 2.4 GHz ZIGBEE |
| Power supply | 5 V, USB C |
| Battery | 3.7 V, 1,200 mAh LiPo |
| Operating time | up to 20 hours |
| Charging time | up to 2 hours |
| Box | |
|---|---|
| Connection | Bluetooth version 4.2; 2.4 GHz ZIGBEE |
| Power supply | 5 V, USB C |
| Battery | 3.7 V, 2,000 mAh LiPo |
| Operating time | approx. 15 training sessions |
| Charging time | up to 2 hours |
Warranty
For commercial use, we provide a 6-month warranty against material and workmanship defects. The warranty is valid in all countries where the eaglefit STUDIO EMS System is officially sold. The warranty does not cover damage caused by improper or negligent handling.
EU Declaration of Conformity

Manufacturer Information
eaglefit GmbH is authorized to affix the CE marking on the eaglefit STUDIO EMS System, thereby certifying its compliance with relevant EU directives.


