Frequency
1 to 1,000 Hz (typically 120 Hz–150 Hz)
Frequency
1 - 100,000 Hz (usually approx. 2,000 Hz)
Weight
approx. 140g
Weight
approx. 279g (plus separate battery 276g)
Dimensions
9.7cm x 6.5cm x 3.0cm
Dimensions
12.5cm x 7.5cm x 3.5cm
Separate battery unit
YES
Separate battery unit
YES (276.2 g - 9.8 x 8 x 2.8 cm)
Wireless
100%
Wireless
100%
Training sessions
15–20 sessions per battery charge
Training sessions
15–20 sessions per battery charge
The classic kraftbox
The Classic kraftbox from kraftwunder is the ideal training device for anyone looking for a powerful, flexible, and durable EMS system (1 to 1,000 Hz (typically 120 Hz–150 Hz)). Weighing just 140 g, it is genuinely lightweight while still offering impressive technology—Made in Germany.
- Powerful and handy
- Replaceable battery unit
- Large battery capacity (20 training sessions of 20 minutes each)
- High-quality and robust material quality
- 100% wireless—flexible and mobile
- No restriction of movement due to side placement
- Made in Germany—quality you can feel
The Next Level power box
The Next Level EMA power box sets new standards in EMS and EMA training. Equipped with state-of-the-art technology, it combines medium- and low-frequency electrical stimulation (1–100,000 Hz, typically around 2,000 Hz) to provide you with a workout experience that is significantly more comfortable and, at the same time, more effective than conventional EMS systems.
- Efficient training through direct cell activation
- Lightweight, compact, and powerful
- Separate battery unit
- Large battery capacity (20 training sessions of 20 minutes each)
- High-quality, durable materials
- 100% wireless – flexible and mobile
- No restriction of movement thanks to side placement
- Innovation made in Germany
FEATURES
Despite its compact size (9.7 cm x 6.5 cm x 3.0 cm), the Classic Kraftbox is packed with advanced technology. It uses low-frequency electrical stimulation (EMS, approx. 120 Hz)) to stimulate your muscles in a targeted and efficient manner. Whether you want to strengthen your muscles, improve your endurance, or reach your fitness goals faster, the Classic Kraftbox delivers outstanding results in no time. Thanks to its robust construction, successfully tested in the demanding studio environment, our Kraftboxes can withstand even the most intense strain.
Due to its modulated medium frequency (EMA, approx. 2,000 Hz), the Next Level kraftbox directly activates your body’s cells. This advanced technology enables deeper and broader muscle stimulation, naturally activating your muscles and resulting in a significantly more effective workout. In addition, its higher frequency allows the modulated medium frequency to penetrate all human tissues deeply and positively influence them (muscles, fascia, lymphatic tissue, fat cells, etc.). The cells stimulated in this way are supported in rebuilding healthy cell tension. Healthy cell tension promotes metabolism and therefore improves blood circulation and the supply of oxygen to the cells. In summary, you can rely on a targeted and sustainable workout that takes your fitness and health to a new level.
Enjoy the freedom of a 100% wireless workout. Thanks to the control box’s side placement, you can train with complete freedom. Whether you perform fast, dynamic movements or stretch intensely, it integrates effortlessly into your training routine—at home or in the studio. Thanks to the high-performance battery, you can complete up to 20 20-minute workouts on a single charge. Unlike many other providers, the battery in the Classic kraftbox can be removed and replaced, giving your kraftbox an even longer service life.
For even more convenience and independence, you can control your kraftbox via Bluetooth with your Kraftwunder app. This gives you full control over your workouts, saves your mobile data, lets you choose your workout location freely, and keeps your data securely on your phone.
The CLASSIC and NEXT LEVEL Kraftbox units combine advanced technology, the highest quality, and user-friendly operation in a single device. Developed and manufactured in Germany, they guarantee you first-class training quality—reliable, effective, and always up to date with the latest EMS / EMA technology.
Our power boxes are manufactured in Germany with the utmost precision and care. For you, that means maximum reliability, first-class workmanship, and the latest technology—developed and produced according to the highest quality standards. Made in Germany stands not only for technical excellence, but also for personal customer service, short delivery routes, transparent production processes, and fair working conditions. This gives you a product that delivers in terms of performance, durability, and sustainability—and inspires confidence. Choose genuine quality. Choose German engineering.
Kraftwunder stands for trust and quality.
Confirmation that our product meets all applicable EU safety, health, and environmental protection requirements.
As developers & manufacturers, we stand for German engineering and craftsmanship.
Excellent service with personalized advice and support is a matter of course for us.
This distinction is awarded to selected products that demonstrate outstanding quality features and offer clear
benefits to the end consumer.
Optimal skin compatibility and comfort, confirmed by a biocompatibility certificate
or OEKO-TEX Standard 100.
Our EMC and ES certifications guarantee you the highest safety and quality standards.
Compliance with legal requirements for maximum protection of your health.
Your training data is stored exclusively on your phone. Your data remains your data.
EXPERIENCES OF OUR CUSTOMERS
Sabrina Setlur
Effective training means getting the most out of every session in a short amount of time. The kraftwunder suits with their premium EMS system support me perfectly and have made my training significantly more intense, targeted, and effective.
Sabrina Setlur, premium training for German rapper
Ana, Berlin
After many attempts to lose weight, I finally found a training method with Kraftwunder’s EMS training suit that truly fits into my daily routine. I have already lost 10 kilograms and feel fitter and more confident. Kraftwunder has been an important part of my journey toward a healthier lifestyle.
Rickard Keilor
Working with the Kraftwunder / EMA system has honestly changed the way I see EMS training. I immediately noticed better muscle activation, more visible muscle growth, and a much more comfortable feeling during sessions - both for myself and the studios I work with. I previously worked with another Spanish EMS brand, but the difference with EMA is huge. The quality, feeling, and results are simply on another level. It’s a system I truly enjoy using every week.
Bodylounge Ulrike Thier
We have been working with the Kraftwunder system for over three years and are very satisfied. We are particularly impressed by the medium-frequency current, as the training is comfortable and highly effective at the same time - without the typical fatigue symptoms of many earlier low-frequency systems. The optimized dry suits, wide range of programs, and reliable service also speak for themselves. Our customers achieve excellent results, especially in terms of increased strength, weight reduction, and toning.
Stefanos Gafos, Elite Fitness Gym & Wellness
Kraftwunder lets us offer our clients in Chios effective, joint-friendly full-body training with total freedom of movement. Just as important is the team behind it: responsive, knowledgeable, and always ready to help us get the most out of the system. Top-quality equipment and real support make Kraftwunder a core part of our premium studio experience.