Wireless Microphone Headset 2.4G Wireless Mic Headset and Handheld 2 In 1 Rechargeable for Voice Amplifier, Stage Speakers, Teacher, Tour Guides, Fitness Instructor

Features: The transmitter and receiver paired automatically within 2 meters 2.4G Wireless Technology: Low Radiation; Low interference; Stable and Clear. High sensitivity, No Direction Limitation. Headset and handhold 2 in 1: remove the head bracket, hold the transmitter in hand, it will become a handhold microphone. Light weight design, comfortably wearing Specifications: RX Sensitivity: -88dBm Maximum Current: ?40mA Modulation Method: GFSK Sampling Frequency: 16KS/s RF Transmission Power: 10dBm Input Voltage Range: DC3.5V-5.5V S/N Ratio:?65dB(f=1kHz, P=1Pa A curve) Transmission Distance: 40M in open places, 10M wall through Continuous Working Time:?10hours Power Supply: Built-in Li-lon Battery Frequency Band: 2400-2483Mhz Pairing Method: Automatcialy Transmission Method: 2.4GHZ Frequency Range: 20-20KHZ Charging Time: <4hours Package: 1 x Headset microphone 1 x Signal receiver(3.5mm plug) 1 x 6.35mm plug for receiver 1 x USB charging cable 1 x User manual