Item Type: Microphone Material: Plastic Wireless Master: Bluetooth 5.2 Working Current: 12mA Standby Current: 7|��A Transmission Distance: Barrier Free, ?Y 20m/65ft Frequency Response: 20??20kHz Sensitivity: 38dB Signal to Noise Ratio: 65dBm Low Latency: 45ms Built in Battery: Lithium Battery 70mAh 1?��Plug And Play: Turn on and plug in the receiver to automatically connect, this clip on microphone is a tailor made gift for people who like live stream, vlogging, and recording videos.? 2?��Mini Design: Mini lavalier mobile microphone, light weight, with storage box, convenient for you to carry, can be clipped on your clothes, use more flexible.? 3?��High Performance: The transmission microphone can be charged by USB, 20m/65ft barrier free connection, 360 degree omni directional sound reception, recording every sound detail.? 4?��Noise Reduction: Omnidirectional microphone, professional noise reduction chip and windshield, effectively identify the original sound, clear recording in noisy environment.? 5?��Auto Synchronization: Wireless microphone supports multi channel real time mixing, which can synchronize mobile phone background music and vocals, reducing post editing, offers professional full band sound.