Product SpecificationsSensor: 5MP 1/2.8 inch CMOS sensorAperture: F/NO: 2.8View angle: 130 degreeFocus range: 50cm or moreVideo format: MP4 / H.264Video resolution:4k(3840*2160@30fps); 2.7k(2704*1524@30fps); FHD(1920*1080@60fps); 1920*1080@30fps; HD(1280*720@120fps); VGA(640*480@120fps)Photo format: JPEGPhoto resolution: 18M(4640*3840), 12M(4032*3024), 10M(3648*2736), 8M(3264*2448), 5M(2592*1944), 3M(2048*1536), 2MHD(1920*1080), 1.3M(1280*960), VGA(640*480)Microphone: built-in 1Speaker: built-in 1Indicator light: green (power), red(charging), blue(wifi open)Button: touch buttonWifi: built-inUSB: high speed 2.0Storage: micro SD card, support max 256GBBattery: built-in 3.8V, 1000mAh rechargeable lithium batteryPower access: DC5V 1A, micro 5PIN USBSize: 97mm*27mm*26mmWeight: 70gWork temperature: 0-40 degrees CelciusPacking List1* Head wearable camera1* W1 remote controller1* USB charger cable1* Headband 1* Small wrench1* Screw head2* Soft rubber sleeve1* Hook1* User manual 1* Black storage bagVery Important!1. WIFI cannot be turned on when the battery is low (15% -20%);2. Automatic segmentation when file size reaches 1.79G when recording video with 4K / 2.7K resolution;3. Automatic segmentation every 30 minutes when recording below 1080P (including 720P / 480P);4. Under the situation of the memory card's format is not compatible with the camera, the camera will sound "Please hold on the Photo button to format the memory card".step 1. please touch the photo button for 5 seconds after the prompt tone.step 2. the camera will format the Micro SD card automatically.step 3. After the formatting is finished, the camera will sound "Format complete".5. How to connect WiFi and use APP control?step 1. Turn on the camera, touch the power button to turn on