This wireless microphone set adopts UHF (ultra-high frequency) band which provides strong anti-interference. It has high pick up sensitivity and good tone quality, suitable for business meeting, speeches, teaching, live performance and more situations.<br> Features:<br> This set includes a transmitter with antenna, a receiver with antenna, a headset microphone, an USB cable and a user manual.<br> Adopting UHF (ultra-high frequency) band, the wireless microphone set has the advantage of strong anti-interference.<br> Extremely high pick up sensitivity and good tone quality make your speech or singing more clear.<br> The transmitter is powered by 2 AA batteries (not included), the receiver is powered by 1200mAh rechargeable lithium battery.<br> Long distance connection between transmitter and receiver, the set is suitable for business meeting, speeches, teaching, live performance, etc.<br> Note: Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding.<br> Specifications:<br> Color: Black<br> Material: Plastic<br> Frequency Range: 600MHz-700MHz<br> Modulation Mode: Digital Frequency Modulate<br> Frequency Response: 50Hz-18KHz<br> S/N: more than90dB<br> Distortion: less than 0.5percent @1KHz<br> Output Level: 200mV+/-5mV<br> Sound Cartridge: Dynamic<br> Transmitter Power Supply: 2 * 1.5V AA Battery (not included)<br> Receiver Power Supply: 1200mAh Lithium Battery (included)<br> Item Size: 180 * 66 * 23mm / 7.09 * 2.60 * 0.91in (Transmitter); 203 * 37 * 23mm / 7.99 * 1.46 * 0.91in (Receiver)<br> Item Weight (without battery): 67g / 2.36oz (Transmitter); 29g / 1.02oz (Receiver)<br> Package Size: 31 * 14 * 6.5cm / 12.20 * 5.51 * 2.56in<br> Package Weight: 320g / 11.27oz<br> Package List:<br> 1 * Transmitter<br> 1 * Receiver<br> 1 * Headset Microphone<br> 1 * USB Cable<br> 1 * User Manual (English)