Car Bluetooth Device With 3.5mm Connector, USB Cable, Audio

Instructions for use: insert the receiver into the speaker's usb interface, and the other end connected with the 3.5mm audio cable to the receiver and the aux interface of speakers. open the bluetooth-enabled mobile phone (or computer), and search the surrounding bluetooth devices to find a device called find its pairing code is 0000, after the pairing is successful, the led light will slow down. then you can select the music via bluetooth from a cell phone or computer, a great music will play from speaker.