Cooligg CL-100 Bluetooth Audio Receiver Wireless Adapter with 3.5 mm Stereo Output Bluetooth Audio Adapter: Making your non-Bluetooth car audio/ speakers/ earphones magically become Bluetooth-enabled, to play music wirelessly from your smartphones or tablets. Simple and easy wireless set-up: Turn on the Bluetooth of your cell phone/tablet first, and then turn on the Bluetooth receiver to get them paired. Multipoint Technology: Can simultaneously connect two Bluetooth devices, can reach more than 10 m in open space without cables. Bluetooth A2DP functions, to connect with home stereos, speakers, car stereos, headphones etc. via 3.5mm AUX plug/ port; Handsfree call with built-in Mic; High-performance relaxing and pleasing sound; Built-in Li-Battery rechargeable via Micro USB cable. Includes a 3.5mm plug audio output connector, a pair of 3.5mm Aux earbuds, a micro USB charging cable, a user manual.