Specifications: Lens angle: 120 degrees Video Resolution: 1920*1080P 30fps/1280*720P 30fps Video format: AVI Photo format: JPG Power supply: DC 5V Battery: Built-in 600mAh li-battery Charging Time: About 2 hours Material: Aluminum alloy System Requirements: for Windows 2000/XP/Vista/Windows 7, for OS X OS 10.3.6 or above. Size: Approx. 9 x 3cm/ 3.54 x 1.18in (H x D) Package Weight: 325g Package Included: 1 x Sport DV Camera 1 x Camera Holder 1 x Bike Mount 1 x Car Mount 1 x USB Charging Cable 1 x Strap 1 x User Manual Problems: 1. The light can flash, but the camera can't turn on. 2. The software can't be updated. 3. How to set the recording time? Solutions: 1. Because the camera can not read the card, so the camera can't turn on. The reason for it can't read the card: it can only support for 2-32GB card and the camera can not recognize the card because of the card quality. 2. No need to update the software. 3. This product program is set for 3 minutes; it cannot be modified by itself. Note:The product needs to be inserted into the memory card before use, otherwise it cannot be turned on normally.