Bluetooth 5.0 version, also support 4.0 /3.0 /2.0. Non-destructive installed in your car. Just plug one end of this cable into the CD changer input in the back of your stereo. Choose AUX from your radio and you can from your phone in your car. Match your phone or pad to bluetooth module.and Choose Aux from your radio, then you can use your phone to through car speakers. You can hear music from your phone/pad/mp3(They should have Bluetooth function). Fitment: For C2 2005 + // RD4 For C3 2005 + // RD4 C4 2005 + // RD4 C5 2004 + // RD4 For C6 2005 + // RD4 For C8 2004 + // RD4. Berlingo 2005 + // RD4 For Jumpy 2007 + // RD4 For Synergie 2005 + // RD4 For Expert 2007 + // RD4 For 207 2006 + // RD4 For 307 2005 + // RD4 For 307SW 2005 + // RD4 For 307CC 2004 + // RD4 For 2007 + // RD4 For 407SW 2005 + // RD4 For 807 2005 + // RD4. 1007 2005 + // RD4 For 4007 2007 + // RD4. Voltage: 12V Interface: Bluetooth Item Type: Cables, Adapters & Sockets Material:ABS colour:black Package Contents: 1 x Audio Cable Adapter Only the above package content, other products are not included. Note: Light 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.