Feature: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 SystemReceiver Built in Battery: 370mAh Lithium ion BatteryTransmitter Built in Battery: 370mAh Lithium ion BatteryPlayback Time: Approx. 24 hoursSystem Distortion: 0.03percentage at ODB/1KHZFrequency Response: 10HZ-20KHZCarrier Frequency: ISM Band 5.8GHzAudio Quantization Sampling Rate: 24-BIT/48KTransmission Delay: Approx. 6.5MSMaterial: ABS.Package List:4 x Receivers1 x Transmitter4 x Earphone Cables1 x Audio Cable5 x USB Cables1 x Type C Cable2 x User Manuals