Car Bluetooth Adapter Receiver Wirele Music 3.5mm AUX Audio Receptor USB Mini Bluetooth for Auto Speaker Stereo*Note: Please ensure your car comes with 3.5mm AUX hole, the device should connect to car AUX hole and then work.Instructions for use:*Power connection: Plug the Bluetooth audio receiver and USB head into the DC 5V power supply. Such as: 5V power adapter, the USB port on the speaker is powered, the power indicator will light up (this current can only be started if it needs more than 100MA).*Audio cable connection: Connect one end of the audio 3.5 connector to the AUX port of the audio device, where the audio cable is connected to better ensure that the music will not be distorted and delayed during nsmiion.*Pairing: Turn on the Bluetooth function on the phone, search for ''Bluetooth'', cliand connect.*Music Play: Open the music APP on your mobile phone, select and play your favorite songs, the receiver receives the signal via Bluetooth, and the your speaker which connected with the receiver will play the songs of your phone.s:Working voltage: DC5V ±0.5VLarge working power: 0.3Wnsmiion distance: ≧10mBluetooth version: V4.2Sound : vertical Working frequency: 2.4GHZCable Lenght: 24CMPackage included:1* mini Wirele bluetooth receiver(No retail package )