1. Honeycomb-style audio microphone, high-sensitivity microphone, added to the chipset, can effectively reduce the interference of the surrounding environment on the microphone, effectively prevent and thus eliminate whistling.2. The high-quality metal hose is bent freely, has good elasticity, can be both the size and the head type, can be bent freely, and can be adjusted in any direction when speaking. The metal material has a long service life.3. The head-mounted bracket and the launching host are detachable and intimate design, which is convenient to carry, and can be used in the hand of the transmitting host, and the handheld microphone is changed in seconds.4. Built-in large-capacity polymer lithium battery, no additional power supply, boot and plug-and-play, can be used for up to 6 hours.5. Applicable to tour guides, teaching, supermarket promotions, street stalls, dance training, company meetings and other places.Model Number:OutdoorUse:Conference MicrophoneCommunication:WiredPolar Patterns:OmnidirectionalSet Type:Single MicrophoneInput Voltage Range: DC3.5V-5.5V;Maximum Current: less than or equal to 75mABattery Type: Lithium polymer batteryCharging Time: Less than 4 hoursContinuous Working Time : 8 hours or soFrequency Band: 600-900MhzRF Transmission Power : 10dBmTransmission Distance : 80m (empty accessibility)RX Sensitivity :-88dBmSampling Frequency: 48KS/sS Ratio : greater than or equal to 65dB (f=1kHz, P=1Pa A curve)Operating Temperature: 0~40 Celsiuscolour:blackMaterial:plasticPackage Contents:4 x UHF Wireless Mic2 x USB one to two charging cable2 x 3.5MM adapter2 x single charging cable2 x Instruction manualNote:This UHF acoustic wireless phone needs to be used with an audio or power amplifier, a loudspeaker, etc., and cannot be independently amplified. As long as there is a microphone jack or audio input jack to insert the receiver, and automatically connect when booting, wireless amplification and KTV function.This UHFsound wireless microphone does not have an audio player Only the above package content, other products are not included.Note: Light 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.