Features: 【2.4G Wireless Microphone System】This wireless microphone adopts 2.4G frequency band features stable signal transmission and 50m effective not easy to be interfered ideal for film & vlog recording live streaming interview etc. 【Paired & Receiver】2 Transmitters and 1 receiver have been paired just turn them on then and receiver will automatically link to frequency within 3s plug and play without tedious debugging. 【Dual Microphones Design】 has built-in microphone and supports omnidirectional pickup with clearer sound also comes with an external lapel microphone which allows users to record more flexibly. 【Built-in Rechargeable Battery】 and receiver both have built-in rechargeable battery that can be charged via provided USB cables and working time is up to 5H after fully charging. 【Real Time 】 receiver has real-time return interface you can connect headphones to recording effect; backside clip design can be fixed on collar easily and quickly. Specifications: Brand: Andoer Model: MX5 Sensitivity: -38dB(+/-2dB); receiver -80dB Delay Time: 12.5ms Directivity: omnidirectional Sampling Rate: 48kHz 16bit Signal to Noise Ratio: 90dB Distortion: 0.5% at 1KHz Dynamic : 90dB Frequency : 2.4-2.483G Frequency Response: 20Hz-20KHz Effective : max.50M Working Voltage: 3.3-5V Working Current: max.100mA Charging Current: 400mAh Charging Time: about 2H Working Time: about 5H Item Size: 5 * 5 * 2.1cm/ 2 * 2 * 0.8in Item Weight: 30g/ 1.1oz(receiver); 40g/ 1.4oz() Packing List: 2 * Transmitters 1 * Receiver 2 * 3.5mm Audio Cable 2 * Lavalier Microphone 1 * USB Charging Cable 1 * Users Manual(English)