J6 Lavalier Wireless Microphone with Charging Case 1. 2.4G wireless technology with automatic frequency matching. 2. DSP intelligent noise reduction technology filters out background noise, resulting in clearer vocals. 3. High-quality condenser microphone with omnidirectional ultra-clear sound pickup. 4. Supports real-time monitoring with zero latency. 5. Continuous recording for 6-8 hours per session 6. The receiver is equipped with a Type-C port, so you can charge your phone and record simultaneously. 7. Magnetic detachable back clip design makes it easy to carry and perfect for outdoor live streaming. Specifications Input Voltage: DC5V Microphone Battery: 120mAh Charging Case Battery: 300mAh Battery Life: 6-8 hours SNR: 70dBm (ANC) Transmission Latency: 30ms Sensitivity: -38dB Frequency Response: 20-20kHz Transmission Distance: 20 meters (unobstructed) Charging Case Dimensions: 85x35x50mm Receiver RX Dimensions: 40x23x8mm Microphone TX Dimensions: 30x30x10mm