Light on, music on: each energy-efficient Sengled Pulse LED lamp also has an integrated high-quality JBL stereo speaker that receives your favourite music from your Smartphone, tablet or PC via Bluetooth. Simply screw the clever LED lamp into an existing B22 lamp socket and download our free Pulse app. That’s all it takes to conveniently manage all your light and music functions using your Smartphone. Up to eight of these dimmable lamps can be effortlessly combined into an expansive sound system. Music to your ears!.