Long Battery Life: Helmet camera has a built in 750mAh lithium battery with USB charger. Charging about 2 hours, can work 3‑4 hours, working time is 1 times longer than others. You will no longer worry about the shooting time of this camera. Waterproof and Low Noise: Helmet camera is designed with waterproof aluminum alloy and built in 1/2 inch low noise high grade sensor, compact size, more convenient for various scenes, multi angle shooting. Multipurpose: The camera can be mounted on various helmets to record your wonderful moments. The package list also includes a 360° bracket that can be mounted on a bike or motorcycle handlebar. With Microphone: Bike sports camera has a built in microphone and vibration motor to indicate the working status. Support high capacity 32GB memory card (not included). Operating system: for Windows 7 2000 XP Vista; for OS X 10.3.6 or above. HD and Wide Angle: 1080P helmet cameras catch and share your world with 1920 x 1080 30 fps, 1280 x 720P 60 fps HD resolution, 120 degree ultra wide angle for ultra clear pictures with deeper colors.