-Can not wash with water.
3V Charging Voltage: DC5V Battery: 150mAh For Per Controller (Battery not for individual use) Charging Time: 3-4 Hours Working Time: 6-10 Hours Auto Off: 15Mins Working Temperature: 10-40â/50-104â Closure Type: Hook&Loop Fastener Arm Belt Circumference: 22-30cm/8.66-11.35x3.2cm/1.