waterkproof .helmet sports camera 1.Real Time Stamp Sports Camera 2.Water Resistant Depth:3M waterkproof .helmet sports camera1.Sensor: 2.0 Mega CMOS sensor2.Measurement 80mmX37mmX22mm3.Resolution: VGA 736 x 480 4.Frame frequency: 30fp/s5.Internal memory: 2GB6.External memory: Support TF Card slot (up to 8G) (Option) 7.File format: AVI8.Power Built in Lithium rechargeable Battery, 400MAH, about ...