Features: - Wireless Belt-Pack Microphone System - Single Channel, UHF Selectable Frequency Design - Lab Tested Distortion-Free Pro Audio Performance - USB Powered Microphone Receiver Base - Simple Setup And Hassle-Free Operation - Compact Tabletop Receiver Design - Adjustable Volume Setting - Convenient Desktop Audio Mic Control - Receiver Base with Digital LCD Display - Digital AF / RF Audio Signal Indicators And Frequency Readout - Dual Antenna Extended Wireless Range for Crisp Vocal Pickup - Integrated Low Noise Circuitry - 1/4'' Unbalanced Audio Output Jack - XLR (3-Pin) Balanced Audio Input Connector - Power ON/OFF Control - Used for Home, Office And Business Use What's in the Box: - Microphone Receiver Base - Belt-Pack Transmitter - Headset Microphone - Lavalier Microphone - (2) ‘AA' Batteries - USB Cable Technical Specs: - Wireless Mic System Type: UHF (Ultra High Frequency) Band- Selectable Channel Frequency: 16 Channels - Wireless Operation Range: Up to 165' ft. - Audio Frequency Response: 30-20kHz - Image And Spurious Rejection: >70 dB - Audio Output Level: +/- 300 mV - Output Impedance: 600 Ohm - Frequency Stability: +/- 0. 005% - Maximum Deviation: +/- 15 kHz - T. H. D: 0. 03% - Sensitivity: -96dBm - Construction Material: Engineered ABS Housing - Power Consumption: