AMPLIFIER via BLUETOOTH adapted by our technician team to be used in a tuberadio. It is available for all tuberadios made from 1952 to 1969. It works for radios with banana conexions or with 5 pins plug conexion in the back side of your radio. Ask me about your radio, tell me your model radio and I will tell you if the bluetooth is compatible with your radio. So yes, I will tell you how operate it. The sound is fantastic and you will can hear the music from your iPhon, Mp3, CD, computer,.... through your old tuberadio. The amplifier has a battery that you can recharge using the charging wires included, using your own phone charger. IMPORTANT: This Bluetooth+Amplifier has been adapted by our team with a special wire made by hand and with our "resistor system" to avoid damages in the radio. The special wire is absolutely necessary and the resistor system devised by our team is essential for the correct functioning of your radio With this bluetooth-amplifier system, the music from your phone will reach the bluetooth, pass through the amplifier, and from there to your radio with the best HIFI sound quality. Now you will can hear your Jazz collection or your favourite music through your old tuberadio using a professional PRE-AMPLIFIER. The bluetooth can operate until 15m distance from your telephone, Ipod or CD. Note: The AMPLIFIER is very important if you don´t want damage your radio. Other sellers sell only the bluetooth without an adapted pre-amplifier and this is not a good idea because you could damage the output transformer of your old radio. But we sell a BLUETOOTH with an PRE-AMPLIFIER so the volume will be perfect and you will can use it hours and hours in your radio without any risk. It has been adapted by our team using a special "resistor system" to avoid problems in your radio and to be sure the sound will be perfect. PICTURES: