Features:
1.) Ultra-high light LED: 1pc
2.) rechargeable batteries inside (over 500 charge cycle)
3.) Charged by USB
4.) Dimensions: Dia 20mm x 72mm
5.) 1.5 hours lighting time based on one charge time (20 min charge)
6.) No software/driver needed
Function:
1.) Press the button on the top cover LED lighting
2.) Press the button again LED Flash lighting
3.) Press [...]