Eatures: 1. Hd1080p video recording 2. Built-in microphone for audio recording 3. Built-in battery 4. Support snapshot 5. Light and easy carry 6. Support 8-32gb micro-sd card note: * half-frame can't be exchanged glasses' lens * any damage caused from exchanging lens is out range of quality guarantee * our store don't pay any tax for buyer. How to operate: 1 step: long press the button to power on (standby status), the blue light is on 2 step: short press the button, blue light flicker one time, take 1 picture 3 step: long press the button until blue light flickering, and release button, blue light is off, enter into video recording status 4 step: long press the button until red light flickering, power off.