Features: 2.4G wireless technology, automatic frequency pairing and instant use. The real wireless second connection can reach a distance of 30m, and the stable transmission of audio and video is synchronized.Strong compatibility, compatible with 99% of devices. Compatible with cameras, mobile phones, camcorders, computers, sound cards, recorders, mixers and other equipment.Barrier-free transmission, 30m effective transmission without delay. High-performance wireless technology, super stable signal, audio and video synchronization.Omni-directional 360 radio, high-end condenser microphone super clear radio. Receiving tongues from all directions in equal amounts, the human voice is cleaned and restored to clearly record the sound details.Intelligent noise reduction, filtering noise and human voice more clearly. Built-in DSP chip, intelligent noise filtering can effectively reduce the impact of noise on recording.Specification: Name: Wireless Lavalier Microphonebluetooth: 5.0Sound delay: 30msSampling rate: 48KHzDigital audio: Type-C transmissionTransmission distance: 30mFrequency response: 20Hz-20KHzAnalog audio: 3.5 terminal line transmissionBattery life: 8H-300mAh/HWorking temperature: -10~50quantity: B-1PCS TransmittersTwo-way monitoring, real-time adjustment while recording. Both the transmitter and receiver have a 3.5mm interface, real-time ear feedback, and adjust while recording.Built-in -capacity lithium battery, 8H long battery life, can record and broadcast for a whole day, and the power is durable to protect your recording market.Mini portable, more design, no burden to wear.Material: plasticcolour: blackPackage Contents: 1 x Transmitter1 x Receiver1 x Type-C Charging Cable1 x English User ManualOnly 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.