Features 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. specificationItem 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 PackageList2 xMicrophone 1 xReceiver 2 x Head Mount 1 x Instruction Manual 1 x One for Two Charging Cable 1 x 3.5MM to 6.35MM Adapter