Dual Microphone Mini Wireless Finger Clip Microphone Mobile Phone Live Noise Reduction Bluetooth Microphone 1. Transmission distance: 30m (under barrier-free conditions) 2. Sensitivity: -26dB 3. Transmission delay: 15ms 4. Specified type: omnidirectional condenser microphone 5. Working frequency: 2.4G wireless connection 6. Signal-to-noise ratio: 70DBM 7. Charging interface: Type-C 8. Transmission frequency band: 2400MＨz-2483.5MＨ７ 9. Battery capacity: 60mAh for microphone, 250mAh for charging case 10. Charging time: about 1.5h 11. Use time: about 6-30h 12. Charging box size: about 6.9 x 5.2cm 13. Weight: about 52g Features: 1. Universal for mobile phonescomputersSLRs and other devices 2. The microphone signal-to-noise ratio reaches 70DB, ensuring clear sound quality, reducing environmental interference, and recording every detail of the sound 3. Built-in condenser microphone, 360-degree omnidirectional radio, fully capture radio details, restore more three-dimensional and full sound effects 4. Support recording while charging the phone, the receiver is equipped with a direct charging port for the phone 5. With the charging box, the comprehensive battery life is up to 30 hours, and the single microphone is up to 6 hours, no need to worry about power consumption 6. ENC noise reduction, plug and play 7. Exquisite and compact, simple shape, easy to wear, easy to put into the pocket 8. 2.4G wireless technology, ready to use, automatic frequency 9. No need for tedious operation, turn on the receiver and plug it in to automatically connect 10. Multi-chip hybrid processing, one-click noise reduction is more thorough