wireless microphone system, phenyx pro dual channel cordless mic set with 2 handhelds, 2x100 channels, auto scan, lock function, 328ft coverage, ideal for dj, church, events (ptu-71a) phenyx pro <p><b>in phenyx, we constantly focus on details, explore better production techniques, and utilize sturdy material to build our products. we are determined to offer better and easier solutions for sound performance and provide our customers with high-end value without overpaying. </b></p><p>the <b>phenyx ptu-71 uhf dual channel wireless microphone system</b> is a uhf dual wireless microphone system designed to provide great sound reproduction in any formal or recreational setting: <br>*infrared synchronization technology enhances frequency search and pairs up receiver and transmitter quickly. <br>*pll-synthesized technology offers high level of frequency stability and accuracy, which ensures excellent sound quality and decreases drop-off. <br>*up to 80 channel selections and up to 250ft operating distance in wide open space. <br>*6.5mm to 3.5mm audio cable adapter is to provide more flexibility. </p><br><b>specifications:</b><br><b>overall system</b><br>carrier frequency range: uhf 530-580 mhz <br>frequency stability: 0.003% <br>frequency response: 50hz – 18khz <br>audio output level: 1⁄4 interface: 0-500mv; xlr interface: 0 – 500mv <br>working distance: up to 80m/260ft <br><br> <b>receiver</b><br>output impedance: xlr connector: 200ω <br>rf sensitivity: -105dbm <br>image rejection: >110db <br>spurious rejection: >90db <br>power: 5w <br>power requirement: dc 12- 18v, current: 400ma, external power adaptor. <br><br><b>attention:</b><br>1. please use the <b> 80 channels from 530-580 mhz in u.s. </b>due to local regulations. <br>2. this package only contains the wireless microphone system. you still need to have an additional audio device (speaker or amplifier) to output the sound. <br>3. this package does not contain microphone cable with xlr connector.