The MyOnyx device is a portable, rechargeable device for surface EMG biofeedback and electrostimulation which offers three functionality modes: standalone, remote control with an Android device and PC controlled with Windows software.
 

MyOnyx gives you quick and easy access to a wide variety of modalities, with state-of-the-art advanced features:

• Electrostimulation: 4 channels of fully customizable powerful stimulation
• SEMG Surface Electromyography: 2 channels of 2048s/s raw signal. A plethora of feedback types and options: games, music, and animations. Simple or detailed reviewing, editing and reporting features. Measure patient muscle activation efforts, and teach relaxation, activation or fine motor control with the power of Biofeedback
• ETS EMG-Triggered Stimulation: state of the art modality allows patients to start a task actively, and be assisted by electrostimulation once reaching a set threshold, thereby rewarding effort with movement and promoting neuroplasticity

Please find more information here.