DEBRA EMX-1 Portable Wireless Monitor System Receiver + Earphones(Black)

1. UHF FM, 16 kinds of frequencies, automatic matching. 2. Low signal transmission latency, stable and reliable, with an effective range of up to 30 meters. 3. Built-in rechargeable lithium battery, provides 6-8 hours of continuous use. 4. Mini receiver, practical and portable. 5. Equipped with comfortable headphones, it isolates noise and provides clear vocals. Technical Specifications Frequency Range: 560-590MHz Latency: 4.5ms Adjustable Channels: 16 Frequency Stability: +3PPM Frequency Response: 40Hz-20kHz Signal-to-Noise Ratio: 94dB Operating Range: 30m (up to 50m in optimal conditions) Battery: 3.7V 1000mAh Package Included: Receiver x 1 Earphones x 1 USB Cable x 1 User Manual x 1