Additional receiver for U4 wireless system, light and compact, rechargeable and operating on frequency band 2.4 GHz, stereo mini jack output, 24-bit/48kHz A/D conversion, uncompressed digital transmission, 6 channels, range up to 27 m (without obstacles), frequency response: 20Hz to 20 kHz, latency less than 5 ms, dynamic range 107 dB, approx. 5 hours autonomy, robust ABS case, weight: 118g.