AUKEY Bluetooth Receiver, Portable Wireless Audio Receiver Car Kit with Hands-Free Calling for Home Stereos & Car Audio Systems Wireless Music: Wirelessly stream audio from your Bluetooth-enabled devices to your existing wired home or car stereo system, speakers, or headphones Long Playtime: Built-in rechargeable battery supports 12 hours of continuous playback and 360 hours of standby time Dual Device Link: Supports simultaneous wireless connection to two devices, so it can receive audio from either one of two connected phones Easy Use: Navigate your music on the receiver with built-in controls which can also be used to manage hands-free calls from your phone Package Contents: AUKEY BR-C2 Portable Audio Receiver, 3.5mm Audio Cable, 3.5mm Audio Connector, Micro-USB Cable, User Manual, 45-Day Money Back Guarantee and 24-Month Product Replacement Warranty Card