Bluetooth 4.1 version. support 3.0 2.0 4.0 player. The bluetooth module is made for radio Just plug the white connector into the socket back of your radio You can just Insert this item to the back radio then Connect the red wire to 12V+, the black wire to 12V-. Match your phone or pad to bluetooth module.and Choose Aux from your radio, then you can use your phone to through car speakers. Item Type:Bluetooth Car Kit Special Features:car radio bluetooth audio Bluetooth type:4.1 Fitment: For 3 2006 to up ONLY. For 6 2006 to up ONLY. For 5 2006 to up ONLY. For 2 2006 to up ONLY. For MX5 2006 to up ONLY. For RX8 2006 to up ONLY . Colour:Black Material:Plastic Package Contents: 3 * AUX audio cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.