Features: ABS material, high toughness and durability. Fit glass,suitable for most motorcycle and electric vehicle helmets. Fuselage waterproof upgrade + stable intelligent system. 800 mAh, 1200 mAh battery capacity is optional to meet different needs. 2-speed change switch, large button, one key switching. The swing range is 170 and the spring design is perfect. It fits the radian of the mirror and is very clean when scraped. The telescopic support can adapt to the minimum mirror height of 12cm and can be extended by 2cm Specifications: Color:Titanium Charging power: 5 V 1A Rated working voltage: 5V Rated power: 2W Battery capacity: 800 mAh, 1200 mAh optional Pakage list: 1X helmet electric wiper