Mini Clip-on Microphone System withTransmitter Receiver Product Feature Clear Sound Quality: Omnidirectional sound pick up pattern provides 360 sound recording, dual mic noise reduction technology, with wind muff, reducing plosive, ambient noise, and wind sound, providing clear sound quality. Large Wireless Transmission Range: 2.4G wireless transmission technology, has low delay, stable signal, and large transmission distance up to 20 meters, giving you more movement freedom. Exquisite Storage Case: Provides neat storage of transmitters, receivers, and wind muff, easy for carrying; also a charging case, no need of extra power bank, no worry about running out of power. Wide Suitability: Type-C port, equipped with a type-c to USB adapter and an extra adapter replacement for iOS/ Android smartphones and computer, great for video recording, business conference, interview, meeting, live stream, etc. Easy Use: Clip-on microphone of mini size and light weight, can be easily attached to your collar, and the receiver is easy to install, plug and play, no need of any setup or apps, quick and convenient for use. Product Specifications: Wireless Transmission Frequency: 2.4G Transmitting Delay: 30ms Microphone: Dual MEMS Silicone Microphone ENC: Dual MIC ENC ENC Depth: -25DB Sensitivity : -42dB+1dB SNR(Signal to Noise Ratio): 56dB Sampling Rate: 16KHZ Battery Capacity: 55mAh Charging Current: 50mA Endurance: 7-8H Package List: 1 * Transmitter 1 * Receiver 1 * Adapter 1 * Type-C-USB Adapter 1 * Charging Case 1 * Wind Muff 1 * USB Cable Before you place an order, please provide me with English information to facilitate our delivery and logistics