Smart Wi-Fi & Bluetooth LED Star & Galaxy Cloud Light Projector for Bedroom Night Light Living Room App Control & Timer. * ALEXA & GOOGLE HOME SMART FUNCTIONALITY – The projector is controlled using the app, which allows you to choose your desired effects from the pre-set list. The app is compatible with the TUYA platform and ENERJSMART app and is also compatible with Google Home and Amazon Alexa for voice control. Using the app, you can also set timers for your projector to turn on and off to save power. Plus the app works on both, Bluetooth and Wi-Fi, so you can control your device remotely from almost anywhere! * DUAL PROJECTION TECHNOLOGY - The projector features TWO different projector types; combining a projection lamp with a class 2 laser.