**With compact portable design; Easily paired， no pairing code; Be attached with a standard USB charging port and a 3.5mm audio cable; Receive audio signal by wireless Bluetooth or transfer the audio signal by the included 3.5mm audio cable**Can easily and simply to upgrade the car stereo audio; Support universal control function (such as play/pause， previous song， next song， etc); Support Bluetooth hands-free function， you cannot miss any call when listen to music. Support all car stereo with AUX IN**With 3.5mm audio cable， it can uprade the wired normal speaker/stereo to wireless bluethooth speaker/stereo**Come with USB port， it can charge your mobile devices such as， cell phones， Tablet， MP3/4， etc.**Streaming music without wired from iPod， iPhone， Tablet PC， and other Bluetooth enabled mobile devices to the stereo speaker