Model: H6008 (2 Pack/4 Pack) Brighten up the inside of your home with added convenience. With features such as Group Control and automated timers, Govee Wi-Fi & Bluetooth LED Bulbs will stay bright whenever you'd like. (Please Note: This A19 smart bulb cannot be used with smart switches). 16 Million DIY Colors: Govee smart light bulbs own millions of color and 54 preset scene modes, you can explore your favored one or pick one suits your moods most, bringing yourself a real fantastic lighting experience(Working Voltage: AC 120V). Group Control For Up To 50 Bulbs: Simplify Halloween setups by grouping smart bulbs & Govee devices. Create a scheme, add devices, and control them simultaneously. Ensure bulbs are on stable 2.4GHz WiFi for optimal experience. Music Sync: Our smart light bulbs change color and brightness simultaneously when sounds are detected by the microphone on your phone. Note: only works when the microphone is not occupied. Download Govee Home App and enable microphone permissions. Smart Control: Govee color changing light bulbs make it possible to control your bulbs with simple voice commands. And you'd also feel free to turn your smart light bulbs on/off, adjust brightness, or change the colors, set scenes via Govee Home App. (Note: Doesn't support 5G) Timer and Schedule: Applying the smart light bulbs to your daily routine now is easier than ever, with timer function and modes like Sunrise & Sunset, you can set your bulbs to brighten when you wake up, and gradually dim when you fall asleep. *The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Shenzhen Qianyan Technology LTD is under license.