Product Description: Main functions: Take a Video High-speed action recording Playback on computer Web camera Playback on TV 1.Small sized, 2.Clear video taking 3.Supporting 8GB TF card. 4.Built-in Memory:64M. 5.360 degree revolving mounting 6.With unique retractile belt, it is compatible for all kinds of helmet 7.Built-in lithium battery 380 milliamperes 8.Audio recording range up to 4 Meters 9.Hand-free, suitable for use in sports like swimming /riding/hunting/surfing/boating/ 10.Waterproof under 3m deep water,especially suitanle for swimming/surfing/underwater photographing or other water game 11.Can work as webcam ,One Year warranty 12.Power saving feature: camera will auto shutdown after one minute of non-activity   Dimension: 10cm X 3.75cm X 5.55cm File format: AVI Camera distance: 2-30M Record video colour: Yes Video Resolution: 640*480 / 30fps SD/TF card support up to 8GB Built-in lithium battery 380 milliamperes View angle: 80 degree Color: Black Interface: USB port        Package: 1 x Action camera (memory Card is not included) 1 x Usb cable 1 x AV cable 1 x Charger 1 x Helmet grip 1 x Handletbar grip 1 x Screw 1 x Short Velcro strap 1 x Long Velcro strap 1 x Silicon rubber head strap 1 x Silicon grease 1 x Manual(English) 1 x Driver CD