FIXED Signal Alu allows you to connect your smartphone to older types of car radios or other devices without Bluetooth technology and with a 3.5 mm jack. Simply plug the receiver into the 3.5mm jack of the device and also into the USB port from which the Signal Alu is powered. Once both ends are plugged in, it's ready to use and you can listen to your favourite music in HD quality or take calls thanks to the built-in microphone. By connecting to the car's audio system, you can also hear mobile navigation instructions. The Multipoint function allows you to connect two devices at the same time, ensuring that you can listen to music and take calls. The Signal Alu can also connect your phone to an older hi-fi system, adding a new dimension to music streaming. The cable is up to 1.5 m long and its spiral design saves space in the car interior and prevents tangling.