Bluetooth Kit with Microphone for Pioneer Cd Changer Output Tapes (with Aux Menu)Bluetooth kit with microphone for tape recorders with Pioneer cd changer output (with aux menu) Thanks to the product microphone, it provides the opportunity to talk on the phone. If there is an aux feature in the tape menu, the product is compatible. Before making a purchase (Turn the aux feature from off to on in the setup settings.) It provides the opportunity to listen to music at high speed (4. 1 speed) via bluetooth without loss of sound