BW-2488 (VHF Wireless Microphone)

BW-2488 (VHF Wireless Microphone) System Specifications: Frequency Range: VHF 210-280MHz Audio Frequency Response: 100Hz-10KHz Signal to Noise Ratio: >60dB Dynamic Range:>60dB System Distortion: ≤0.5% Operating Range: 25m Operating Temperature Range: 0oC 40oC Transmitter: RF Output Power: 10mW Max Antenna: Built-in Power Requirement: 9V Nominal Current Drain: Approximately 30mA Battery Life: 8 Hours Receiver: Power Supply: AC110V/220V Features: 4 microphone in one receiver can work at same time Wide range frequency response ,low distortion LED showing screen Advanced special audio mute circuitry to eliminate on/off "pop" noise Delivering clear ,transparent ,high fidelity audio ,it can be used for middle-scale meeting room 4 groups frequency (special for 10 groups if needed) can work at same time 1 mixed XLR-3 output unbalance ,4 separated unbalance 6.3mm jack output Dual voltage 110V/220V selectable switch