Product features: 1. The scheme is cost-effective 2. 170-degree HD wide-angle lens 3. Video resolution 4K@30fps 4. 2.0-inch HD color screen 5. Unique slow photography function 6. High color reproduction, good image permeability 7. Low power consumption WIFI video work for more than 1.5 hours Hardware specifications: Product model: H9 Video resolution: 4K@30fps/2.7K@30fps/1920*1080 60fps /1920*1080 30fps/ 1280*720 120fps / 1280*720 60fps /1280*720 30fps Photo resolution: 16M /14M /12M /10M /8M/ 5M lens: 170 HD wide-angle lens Exposure: -3, -2, -1, 0, 1, 2, 3 Speed: Auto, 100, 200, 400, 800, 1600 White balance: Automatic (default), sunny, cloudy, incandescent, fluorescent Digital zoom: 4X Photo mode: normal photo; Take regular photos; Automatic photo taking; Motion trajectory photography Video mode: normal video; Loop recording; Time-lapse recording Slow photography: 1080p 60fps, 720p 120fps (Default) Display: 2.0" LCD (960*240) Image format: JPEG Video format: MP4 Video compression format: H.264 Data connection: Micro USB2.0, HDMI (Optional) Expanded memory: MAX to 64G, Micro SDHC Power supply: 5V/1A Indicator: Blue work indicator, yellow WIFI indicator, red charging indicator Speaker: built-in Battery capacity: 900MAH Recording time: 1080P/About 90 minutes Charging time: About 2 hours WIFI: 802.11b/g/n Languages: English, Simplified Chinese, Traditional Chinese, Korean, Russian, French, German, Italian, Spanish, Portuguese, Japanese Overall dimensions: 5.9*4.1*2.9cm/2.32*1.61*1.14 inches Box size: 27*16*6cm/10.63*6.3*2.36 inches Weight: 44g(without battery), 58g with battery Weight :298g Operating temperature: -10℃ +55℃ Storage temperature: 0 ° C to +40 ° C Relative humidity: 5% 95% (no frost) Waterproof rating: 30 meters can work Accessories: waterproof cover, strap, bike stand, accessory base, fixed seat, data cable, helmet seat, adapter, manual Applications: Extreme sports, outdoor sports activities, cycling, diving, home safety, etc