Feature: 1. 4K HD Camera: Brings you HD 3840 x 2160 4K 30FTPS image quality, easily records videos of various scenes for SONY 335 HD lens, making every detail visible. 2. WIFI Direct Connection: Can be controlled through the cell phone APP, connect WIFI step by step operation synchronized lens screen, operation of the camera to take pictures or video, etc. and can download video, edit, share multiple platforms. 3. APP Operation: Short video or optional length video to save through APP settings, you can choose the length of the video, making it more convenient for you to shoot short videos. 4. Intelligent Voice Prompts: Voice helper announces the operation status in real time, and the operation is more simple and clear. 5. Ergonomic Design: Head mounted camera, detachable head chain, adjustable size, with a variety of accessories, according to the needs of automatic DIY, to adapt to different groups of people. 6. 2200mAh Battery: Configured with 2200mAh high capacity polymer lithium battery, 270 minutes of long lasting life, rest assured that use. 7. Loop Recording and Power Off Saving: Automatic overwrite when the camera, automatic overwrite display camera clips when the memory is full, low battery automatically save the video file and then automatically shut down to ensure that the information is not lost. Specification: Item Type: Head Mounted Camera Material: ABS Gross Weight: 322g / 11.4oz Camera Resolution: 3840 x 2160 4K 30FPS, 2560 x 1600 2.7K 30FPS, 1920 x 1080 1080P 30FPS Support System: for windows, for linux, for iOS Working Time: about 4 hours of video (not open WIFI) Light Source Frequency: 50HZ Battery Type: polymer battery, capacity 2200mAh (shipped with built in battery). Package List: 1 x Camera1 x Headset Bracket1 x USB Cable1 x Cleaning Cloth1 x Reset Pin1 x Instruction Manual2 x Double Sided Adhesive2 x Rubber Ring3 x Small Accessory