Features: Dual microphone noise reduction: built-in noise reduction chip, which can effectively filter 90% of the noise, and the sound is clearer without noise.360 pickup: high-sensitivity condenser microphone head, 360 no dead angle radio, good at capturing the details of the sound, rejecting the sound quality like boiled water.HIFI lossless sound quality: Specially invited professional tuning room to repeatedly tune to better sound quality, not radio, also better sound quality.Wireless technology: 1 second automatic connection, strong signal, unobstructed synchronous transmission, not easy to be interfered.30m long-distance -free transmission: high-sensitivity mobile phone receiver, stable signal transmission, unrestricted free recording, and even more unimpeded outdoor recording.Real-time dual monitoring: You can connect headphones to monitor the radio effect in real time.Long-lasting battery life: Built-in high-capacity lithium battery, your recording time.Wide range of applications: suitable for outdoor , short video , interview recording, Internet eating and broadcasting, live selling, online class teaching, etc.Small size: mini 1cm thickness, lighter design, weight only 26g, easier to wear.Specification:Name: Wireless Lavalier MicrophonePointing Type: OmnidirectionalFrequency range: UHF transmissionFrequency response range: 30Hz-18KHzTransmission distance: 30mSignal-to-noise : 90dbBattery capacity: 500Ah /3.7VRated input: DC5V/500mAStandard charging time: about 1 hourWorking hours: 6 hoursWorking temperature: -10~45Storage temperature: -20~60Size: 44 x 44 x 23mmMaterial: plasticcolor: BlackPackage Contents:1 x Microphone Transmitter1 x Microphone ReceiverOnly 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.