Feature: 1. ANTI INTERFERENCE: The wireless microphone headset adopts 2.4G frequency, no delay, anti interference, ensuring stable sound transmission. 2. EASY TO USE: 2.4G wireless microphone headset with the latest frequency hopping technology, no frequency pairing, automatic connection, plug and play. 3. NOISE REDUCTION: 2.4G wireless mic headset with built in chip, strong noise reduction, filter unnecessary noise, provide pure sound quality. 4. WITH ADAPTER: Wireless microphone headset is equipped with 3.5mm to 6.35mm adapter, suitable for all kinds of sound devices, flexible connection. 5. DETACHABLE: The head mount and transmitter of the head mic can be detached freely, which can meet the demand of handheld use and is convenient to carry. Specification: Item Type: Wireless Microphone Headset Material: ABS Battery Type: Lithium Battery Receiver Battery Capacity: 400mAh (Included) Single Microphone Battery Capacity: 400mAh (Included) Transmit Frequency: 2400Hz Sound Response: 20-20KHz Sound Signal: Digital Sampling, Mixed Output Power Consumption: ≤35mA Charging Time: About 1.5 Hours Use Time: About 12 Hours Applicable Equipment: Amplifier, Trolley Speaker, Power Amplifier, Teaching All in One Machine. Package List: 2 x Microphone1 x Receiver2 x Head Mount1 x Instruction Manual 1 x One for Two Charging Cable1 x 3.5MM to 6.35MM Adapter