Live Noise Reduction Video Shooting Mini Mobile Phone Microphone Digital Wireless Lapel Microphone 1. Transmission distance: 20m (under barrier-free conditions) 2. Sensitivity: -26dB 3. Transmission delay: 25ms 4. Specified type: omnidirectional condenser microphone 5. Working frequency: 2.4G wireless connection 6. Signal-to-noise ratio: 64DBM 7. Charging interface: Type-C 8. Transmission frequency band: 2400Mz-2483.5M 9. Battery capacity: 70mAh for microphone, 130mAh for H68 receiver (plug and play for H67 receiver) Features: 1. Display function and power display are clear at a glance 2. About 4-5 hours of battery life, support for charging and use 3. 2.4G wireless transmission technology, ultra-long distance, anti-interference for sound reception 4. Built-in high-sensitivity pickup microphone, wider sound reception range, no need to shout to the microphone to clearly record and restore details 5. 48KHz 24Bits audio resolution 6. One-way mono audio transmission, the device can receive the sound from the wireless microphone, and the wireless microphone can receive the sound from the device 7. Exquisite and compact, simple shape, easy to wear and easy to store 8. DSP intelligent noise reduction technology, filtering out unnecessary noise