The latest upgraded wireless microphone headset system, adopts 2.4G wireless transmission technology, 165FT/50M barrier-free, stable reception, low latency, and anti-interference. Uses a unidirectional condenser microphone to effectively filter background noise, and uses an intelligent noise reduction chip to effectively suppress noise, so that you can clearly your voice even in a noisy environment. We provide a 3.5mm to 6.35mm adapter to provide you with more choices. Widely compatible with audio amplifiers/high-power speakers/portable PA systems/hybrid microphone speaker systems. The USB charging cable has two ports, which can charge the transmitter and receiver at the same time, and the working time is 6-8 hours after full charge. Easy to use, please turn on the power switch of the transmitter and receiver, long the + volume button to start pairing, and the indicator light stops flashing after the matching is successful, and it can be used without further operation. Suitable for teaching, lectures, meetings, tour guides, entertainment, shopping and other scenes, and can also be used as a handheld microphone, head-mounted microphone, allowing you to move around more freely and show yourself. Parameter: Audio signal: digital sampling 16bit-16KHZ Frequency response: 100HZ-15KHZ Transmission distance: 50M (barrier-free) Transmission power consumption: Less than 15MA Receiving power consumption: Less than 10MA Dynamic range: 96dB Distortion: Less than 0.1% Battery type: lithium-ion battery Charging time: 2 hours Working time: 6-8 hours Frequency band range: 2400-2483Mhz Modulation mode: GFSK Material: Plastic Color: As shown Package Contents: 1 x Wireless Microphone Headset 1 x Transmitter 1 x 6.5mm Adapter 1 x USB Charging Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.