SoundTube WLL-TR-1p-II Tri-band Uncompressed Wireless Transmitter/Receiver SystemThe WLL TX1 wireless transmitter unit transmits uncompressed stereo audio wirelessly for maximum fidelity. Audio input options for the transmitter unit include USB, stereo mini or 1 4" balanced input connections at the transmitter. A High Low power selector switch on transmitter limits RF range where needed. The WLL RX1p wireless receiver unit contains a 2 channel 50W ch Class D amplifier which will power up to two speakers. Receiver output options