Features:<br />adopting uhf (ultra-high frequency) band and double channels, the wireless microphone set has the advantages of strong anti-interference.<Br />a/d and d/a are used for high performance audio of 24 bit / 48khz; using the id code&#43; frequency to encrypt the data, improving the stability of connection.<Br />with automatic mute and shock elimination circuit to avoid the impact and noise of switching machine.<Br />extremely high pick up sensitivity and excellent tone quality make your speech or singing more clear.<Br />the handheld microphone has the led digital tube, which can directly display the current frequency.<Br />the wireless transmission distance is about 30 to 50 meters; multiple devices can be used simultaneously without interference of frequency hopping.<Br />uhf wireless microphone set suit for dj, party, karaoke, business meeting, live performance, etc..<Br/>specifications:<br />handheld microphone --<br />frequency range: uhf<br />channel number: 10 (conservative values) each time matching, id code randomly change, within the frequency range set by the manufacturer<br />oscillator mode: dsp chip frequency lock<br />frequency stability: ±10ppm<br />distortion: ≤0.5%<Br />battery specification: 1.5V x 2/ two aa size alkaline batteries (batteries are not included)<br />endurance: 4~8hours (depending on battery type and capacity)<br />mic size: 23 * 4.5 * 4.5Cm / 9.06 * 1.77In<br />mic weight: 198g / 6.98Oz<br/>receiver--<br />frequency range: uhf<br />channel number: 10 (conservative values) each time matching, id code random change, within the frequency range set by the manufacturer<br />vibration mode: dsp chip frequency lock<br />rate stability: ± 10ppm<br />receiving sensitivity: -95~ 71dbm<br />sound frequency: 40~18000hz<br />distortion: ≤0.5%<Br />snr: ≥ 90db<br />audio output: 300mv(maximum)<br />power supply: built-in 500mah rechargeable battery<br />receiver size: 12.3 * 3.4 * 2.4Cm / 4.84 * 1.34 * 0.94In<br />receiver weight: 40.2G / 1.42Oz<br/>package size: 28.5 * 13.5 * 9.5Cm/ 11.2 * 5.3 * 3.7In<br />package weight: 655g/ 23.1Oz<br/>package list:<br />1 * receiver<br />2 * handheld microphone<br />1 * antenna<br />1 * usb cable<br />1 * 3.5Mm converter<br />1 * user&#39;s manual (english)