Wireless Microphone Headse, XG-WIN UHF Wireless Microphone Headset with Stable Wireless Transmission Voice Amplifier Audio Sound or Teaching, Preaching and Public Speaking

Features: Built-in Bluetooth function, digital FM ste'reo is used for transmission FM-TX Wireless Technology: Low Radiation; Low interference; Stable and Clear. High sensitivity, No Direction Limitation. Specifications: FM Frequency: 89.3 MHz RX Sensitivity: -38dB Distortion: <0.5% RF Transmission Power: 10dBm Input Voltage Range: DC3.5V-5.5V S/N Ratio:?70dB(f=1kHz, P=1Pa A curve) Power Supply: Built-in Rechargeable Li-lon Battery Frequency Response: 20HZ-20KHZ Notice: This package only contains the wireless microphone system. You still need to have an additional audio device (with FM function) to output the sound Package: 1 x Headset microphone 1 x USB charging cable 1 x User manual