Each intelligent bulb has a JBL multi-channel stereo wireless speaker hidden within. You can simply screw the bulb into your existing lamp socket & pair with your Sengled Pulse Master bulb; download & install the app onto your smart devices. Instantly stream music & regulate the lighting. Isn’t that music to your ears? Pulse by Sengled is a smart bulb that combines the energy efficiency of a dimmable LED light with the high-quality audio of a JBL Bluetooth speaker to provide you a premier home entertainment experience that you can easily control. Simply twist Pulse into any standard light socket, & adjust both lighting & sound from almost any Bluetooth enabled device, including your iPhone & iPad. Experience the soaring highs & the rich stereo sound of JBL combined with warm, dimmable lighting, without the fuss of speaker wires, power cords, or an independent remote control. Pulse disappears into the lighting fixtures you already own, so you can enjoy your favorite music & mood lighting, all while accessing an existing power source. Our intuitive i OS app offers seamless control of both light & sound while listening to your favorite streamed music or media, offering you the ability to customize your light & music to suit any mood. One dimmable integrated BR30 down light LED speaker bulbs. No speaker wires, no remote control, no power cords, no installation hassle, only your smart phone/device. Enjoy light & sound in a whole new way. LED Light Bulb makes fantastic energy savings & delivers high-quality audio from JBL stereo audio system. 1.75" Full-Range High-Fidelity JBL Loudspeakers with surround sound effect. Perform as Left-Right Stereo pair (13 Watts (Max.) @ 8ohms / bulb; 100 Hz-20k Hz frequency response). Connect up to 8 wireless speaker bulbs (1 Master supports up to 7 Satellite Bulbs. Pulse Satellite bulb must work with Master bulb), endless pleasure of light & sound for everyone, everywhere. Our intuitive app offers seamless control of both light & sound while listening to your favorite streamed music or media! Power Supply: 100~120V or 220~240V AC, 50/60 Hz. Power consumption: 15W (Light & Audio), Peak 30W. Brightness: 600 lumens, Color Temperature: 2700K, Ra: 80, Light beam angle: 105°