specification: Lens diameter: 8.0mm Resolution: 1600X1200 Sensor size: 1/5 inch Viewing angle: 70° Frame rate: 30fps Focal length: 5-10CM Waterproof rating: IP67 Working temperature: 0°-70°C Power supply: built-in 800mAh lithium battery Working time: 90 minutes Picture format: MJPEG Video format: MP4 Color: yellow Cable length: 10m Weight: 480g resolution: 1) The lens cannot focus automatically. 2) The best resolution distance is 5-10 cm. As the distance gets closer or closer, the resolution will decrease. how to use A: Scan the QR code to download the application. Two: Turn on the power of the Wifi transmitter. Third: Connect the camera to the Wifi transmitter. Four: Connect the wifi signal of the mobile phone, which is transmitted by the product. Five: Open the application, and then you can see the image. packing list: 1 * Wifi box 1 *Endoscope camera 1 *Adapter cable 1 *Charging cable 1 *Set of accessories (mirror, hook, magnet, waterproof cap) 1 *Manual