YELANGU MX5S Dual-Channel 2.4GHz Wireless Microphone System with 2 Transmitters and Receiver (Black) Features 1. 2.400-2.483GHz, ISM bandGFSK modulation. 2. Support 3Mbps RF audio data transmission. 3. Support 48KHZ16bitsingle channel audio sampling. 4. The lower limit audio delay is 12.5ms. 5. A wide range of applications: such as news interviews, film and television shooting, character interviews, program hosts, teaching training and other film and television recordings, as well as connection to mobile phone recording. 6. With real-time return monitoring interface, you can connect headphones to monitor the recording effect. 7. Professional circuit structure, strong anti-noise interference ability. 8. The product has a built-in microphone and an external microphone port. The external microphone has a small collar holder, which can be easily and quickly fixed on the chest clothes, allowing users to use it more flexibly and conveniently. 9. The recording sound quality is clear and the sound quality is excellent, bringing users good recording experience. Specifications 1. Microphone sensitivity: -38+-2dB 2. Microphone directivity: Capacitive omnidirectional 3. Working voltage: 3.3-5V 4. Working current: Max 100mA 5. Ambient temperature: -15~65 degrees 6. Frequency range: 2.4-2.483GHz 5. Sending and receiving distance: Equal to or less than 50 meters 6. Transmitting power: -10~18db 7. Receiving sensitivity: -80 d b 8. Frequency response range: 20Hz-20KHz 9. Delay time: 12.5ms 10. Sampling rate: 48KHz x 16bit 11. Signal-to-noise ratio: 90db 12. Distortion: 0.5% 1KHz 13. Dynamic range: 90db 14. Charging current: 400maH 15. Product charging time: About 2 hours 16. Working time: About 8 hours 17. Dimensions: 50 x 50 x 21 mm 18. Net weight: Transmitter 40greceiver 30g Application 1. A wide range of applications: such as news interviews, film and television shooting, character interviews, program hosts, teaching trainin