phone support: 40-80mm Charging interface: Type-c Product size: 175.2 * 54.8 * 57mm/6.9*2.2*2.3in (excluding base); 183.7X95X95mm/7.3x3.74x3.74in (including base) Operating instructions: 1. On/Off: Press the power button for 3 seconds to turn on/off. 2. Power on status: When the device does not recognize the face, the green light flashes quickly. The green light is always on when the device recognizes the face Double click the key, turn it in the opposite direction, and then click Stop. When you click the key to pause, the red light is on. Click the key again, and the device will continue to work. 3. Potential control: When the equipment recognizes the potential, it pauses and the red light is on. When the equipment recognizes the potential, the equipment will continue to work. 4. Shutdown: When it is recognized, it will be powered off after 15 minutes. When the battery is low, the red LED will flash to remind you to shut down after a minute. 5. Lens: Push the camera upwards and the shooting angle is higher. Push down slightly and the shooting degree is lower. Note:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-2cm measuring deviation due to manual measurement.