Features 1、Professional In Ear Monitoring System: Automatically pairing Cordless transmitter and receiver, no channel switching needed. Ideal for studio, band rehearsal, live performance, camera recording. 2、5.8G Cordless Technology: The Live Broadcast monitoring headset features 5.8G Cordless technology for lossless sound quality and low noise/latency. One touch switching of mono/stereo inputs provides slick frequency response for any headphones. 3、Multiple Receiver Pairing: Multiple receivers can be paired with a single TX at the same time when using our live monitoring headphones, catering for small to medium sized dance performances and daily practice. 4、Versatile Usage: Cordless digital live monitoring headphones are perfect for all kinds of sound monitoring activities, stage performances, studio recordings, exhibitions, lectures, tutorials, speeches and more. 5、Advanced Circuitry: The Cordless live monitoring earphone adopts advanced circuit design, excellent chip, eliminating the reception of blind angle, so that the reception signal of the system is stable. Specification Item Type: Cordless In Ear Monitoring System Receiver Built in Battery: 370mAh Lithium ion Battery Transmitter Built in Battery: 370mAh Lithium ion Battery Playback Time: Approx. 24 hours System Distortion: ≤0.03percentage at ODB/1KHZ Frequency Response: 10HZ-20KHZ Carrier Frequency: ISM Band 5.8GHz Audio Quantization Sampling Rate: 24-BIT/48K Transmission Delay: Approx. 6.5MS Material: ABS Package List 4 x Receivers 1 x Transmitter 4 x Earphone Cables 1 x Audio Cable 5 x USB Cables 1 x Type C Cable 2 x User Manuals