Easy-use App Control: Control Govee bluetooth light bulbs with the Govee Home app via Bluetooth. Useing group control, can easily control groups of bulbs within 196ft at the same time. Adjust lighting effect, manage brightness, or turn your bulbs on/off at only one-touch. (NOT support WIFI) | Lively Music Mode: Sync your favorite songs with color changing light bulb. With the mic of your phone, the color of the smart LED bulbs can dance with the rhythm of song. With party, dynamic and calm mode added in the Music Mode, you can liven up party with vibrant lighting. | RGBWW Lighting Colors: Adjustable 2700-6500K color temperature of bluetooth LED light bulb brings you warm to cool white, meeting your needs for anytime. With over 16 million colors, 8 scenario modes and 1 colorpicking function, you can DIY and share different light effects in Govee Light Studio. | Create a Schedule: Set your bluetooth light bulb to turn on/off at a specific time. With mode like Sunrise or Sunset, you can set your light bulbs to brighten until you wake up or gradually dim until you drift off to sleep. | Energy Efficient & Stress-Free Support: The brightness of these 9W smart LED bulbs is equivalent to a 60W incandescent, saving you 80% on lighting costs. The working tempertaure of the Govee bluetooth light bulb is between 14℉ and 113℉.