Description The PM-320 is a wireless monitoring system for stage presentations and audio broadcasting, and a wireless listening system for large conferences with simultaneous interpretation. It features high-fidelity sound and advanced electronic processing technology, replacing traditional, cumbersome and cumbersome monitoring equipment. This eliminates howling and ensures reliable and flawless performance.*PM-320 Transmitter Chassis Specification: 1/2 EIA Standard 1U Carrier Frequency Bandwidth: 522 - 554MHz Maximum Deviation: ± 50KHz Number of Channel Groups: Single Channel Modulation Mode: FM MPX (Stereo) Wideband S/N Ratio: >100dB Wideband T.H.D.: 100 dBWide frequency response: 25Hz-15KHz +/- 3dB Battery life: about 8 hours Limiter: 6dB per step, can be closed Output jack: 3.5mm stereo headphone jack Weight: about 100g