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.Match your phone or pad to bluetooth module.and Choose Aux from your radio, then you can use your phone to play music through car speakers.You can hear music from your phone/pad/mp3(They should have Bluetooth function).Voltage: 12VInterface: BluetoothItem Type: Cables, Adapters SocketsSpecial Features: Radio Module Bluetooth AuxCompatibility:for Citroen C2 2005for Citroen C3 2005for Citroen C4 2005for Citroen C5 2004for Citroen C6 2005for Citroen C8 2004for Citroen Berlingo 2005for Citroen Jumpy 2007for Citroen Synergie 2005for Peugeot Expert 2007for Peugeot 207 2006for Peugeot 307 2005for Peugeot 307SW 2005for Peugeot 307CC 2004for Peugeot 308 2007for Peugeot 407 2005for Peugeot 407SW 2005for Peugeot 607 2005for Peugeot 807 2005for Peugeot 1007 2005for Peugeot 4007 2007colour:BlackMaterial:ABSPackage Contents:1 x Audio Cable Adapter1 x Bluetooth microphone2 x Disassembly toolOnly the above package content, other products are not included.Note: Light shooting 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.