Bluetooth Gesture Sensors Controller Toy

Gesture EMG Sensor Muscle Signal Control Armband Movement Sensors For Arduino Toys Developers Bracelet with Bluetooth    
used to identify gestures mainly through EMG signals.    
gesture sensor can identify 6 different gestures, with bluetooth BLE module, it supports:    
Ar duino Smart Car, 51 Smart Car, Ar duino Batmobile, STM 32 balance car, Ar duino balance car, 4WD Smart Car, etc.    
colour:black    
Material:Plastic + metal    
size:Inner diameter: 7cm    
Width: 4.7cm    
Package Contents:    
1 * Sensors Controller Armband    
1 * Bluetooth Module    
1 * User Manual    
Only the above package content, other products are not included.    
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.