Three control methods, button control, APP control, voice control. Colorful starry sky (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. When the motor head is turned on, press and hold the product edge measurement switch for 6 seconds, the button indicator flashes3. Before opening the APP on the mobile phone, first open the Bluetooth function, and then add the device {Note: add when the indicator light is flashing}, the phone will have a prompt box {Note: If there is no prompt box, click "Auto Discovery" to search, and then click Add, enter the password under the same WIFI4. Then wait for the connection to succeed