ROCKBROS ไฟท้ายจักรยาน usb ชาร์จไฟได้กันน้ํา

Product details: Brand:ROCKBROS Weight:About125g Battery:2000 mAh Launch distance:About 5m Charge input:DC5V/800Ma Use temperature:-20 degree-60 degree 3 Mode Lighting:Red light ,yellow turn signal,Red laser light Features: Remote control, key to switch Various warning lights state Built-in rechargeable battery No need to change batteries frequently USB charging,Waterproof