Dual Projection Technology - This projector features two different projector types; combining a projector lamp with a Class 2 laser. Luminaires that can be used individually or combined to produce an absolutely stunning visual experience Smart Features The projector is controlled via an app and you can choose the effects to project from a list of presets. The app is compatible with TUYA and is also compatible with Google Home and Alexa for voice control. Using the app, you can also set a timer for the projector to turn on and off to save power. Plus, the app works on Bluetooth and WiFi, so you can remotely control your device from almost anywhere Name: Indoor smart starry sky projector Light color: 7 types of variable light (red, green, blue, red-blue, red-green, green-blue, red-green-blue) Shell material: flame retardant V0 ABS Power cord: 1.8 meters Size: 17cmX16cmX 7cm Packing list: APP intelligent control projector*1, USB cable*1, manual*1 Applicable scenarios: Indoor home theater, restaurant, bar, cafe, birthday party, wedding background layout Children's projector lamp, starry night light projector, usb night light, starlight projector lamp Connection steps: 1. Scan the QR code to download, or search for (Smart Life) APP 2. Use the motor head to press the edge switch of the product for 6 seconds, and the button indicator light will flash. 3. Before opening the APP on the mobile phone, first turn on the Bluetooth function, and then add the device {Note: Add when the indicator light flashes}, the phone will have a prompt box {Note: If there is no prompt box, click "Auto-discover" to search, and then click Add , and enter the password under the same WIFI 4. Then wait for the connection to be successful