Three control methods, button control, APP control, voice control. Starry sky color colorful (controllable monochrome) Shell material: flame retardant V0 grade ABSProduct size: 20cmX22cmX 8cmProduct net weight: about 494gGross weight: about 749GUSB cable length: 1. 8mPacking list: APP intelligent control projector*1, USB cable*1, manual*1 Connection steps: 1. Scan the QR code to download, or search for the (smart life) app2. Press and hold the product edge measurement switch for 6 seconds with the motor head on, and the button indicator light flashes3. Before opening the APP on the mobile phone, turn on the Bluetooth function first, and then add the device {Note: to add when the indicator light is flashing}, the mobile phone will have a prompt box {Note: If there is no prompt box, click "Auto Discovery" Search, then click Add, and enter the password under the same WIFI4. Then wait for the connection to succeed