Feature:1. Plug and Play: The receiver and transmitter are easy to pair, power on and short press the signal button on the receiver, then turn on and long press the signal button on the wireless microphone (transmitter), they will be connected automatically. 2. Rechargeable Wireless Microphone: Dual Micro USB cables can charge the wireless transmitter and receiver at the same time, it takes about 3-4 hours. The working time is about 15 hours after fully charged. 3. Wide compatibility: 2.4G wireless microphone can be used with voice amplifier/high-power speaker/portable PA system/mixer/karaoke speaker system. We also offer a 3.5mm to 6.35mm adapter. Name: Wireless Microphone Transmission frequency: 2400HZ Receive frequency: 2400HZ Audio response: 20-20KH2 Audio signal: digital sampling, mixed output Pairing method: automatic pairing Working voltage: 3.7V polymer battery Power consumption: &le;35MA Charging input: DC5VUSB port Charging time: about 4 hours Use time: about 15 hours Packing list: Package A: microphone x 1, receiver x 1, charging cable x 1 Package B: microphone x 2, receiver x 1, charging cable x 1 Note: 1. Due to manual measurement, please allow 1-3cm error. Make sure you don&#39;t mind before bidding. 2. Due to the difference of different monitors, the picture may not reflect the actual color of the product. Thanks. <div class="panel panel-info"><div class="panel-heading" style="font-weight:bold;">IMPORT: THIS ITEM IS SHIPPED FROM CHINA. PLEASE EXPECT UP TO 25 DAYS FOR DELIVERY</div></div>

2.4g Head-mounted Wireless Microphone Plug Play Teacher Conference Speech Loudspeaker Mic System With Receiver 1 to 1