Valena InMatic, Bluetooth module. Allows wireless (via Bluetooth) or wired radio and music transmission (jack 3.5 mm) from smartphones, MP3 players or other mobile devices. The speakers are connected directly to the Bluetooth module (screw terminals: 2 x 1.5 mm²). For use with power supply order no. 067322. Mono or stereo signal on speakers with 4, 8 or 16 or direct connection to speaker connection box (order no. 75307x).