J6 Smart Digital Display Noise Reduction Magnetic Wireless Collar Microphone Features: 1. 2.4G wireless technology chip, instant connection, automatic frequency matching 2. High-quality condenser microphone, pure, delicate and vivid sound reception 3. Back clip design with magnetic accessories, easy installation and more convenient to carry 4. 2.4G long-distance transmission technology is used for sound reception, stable transmission 5. Low-cut + ENC dual noise reduction, precise reduction of noise of different frequencies, and retaining the original texture of human voice 6. Real-time ear return monitoring, two-way mono audio transmission, the device side can receive the sound of the wireless microphone side, and the wireless microphone side can receive the sound of the device side 7. Compatible with multiple systems Product parameters: 1. Applicable objects: interview-specific, live broadcast crowd 2. Wireless transmission: 2.4GHz adaptive frequency hopping 3. Direction: omnidirectional frequency response range 20Hz-20KHz 4. Bluetooth version: 5.0 5. Transmission distance: recording (measured) - 33 meters without obstacles, 25 meters with back to the camera; playback (measured) - 35 meters without obstacles, 27 meters with back to the camera 6. Microphone head: dynamic coil 7. Battery capacity: microphone (TX) - 130mAh, charging case - 400mAh 8. Charging time: microphone (TX) - about 6 hours, charging case - can charge a transmitter about 2.5 times 9. Battery energy: microphone (TX) - 0.481Wh, charging case - 1.48Wh 10. Battery output voltage: microphone (TX)charging case: 3.7V 11. Input sound pressure level: 100dBV (THD less than 0.1%) 12. Charging case size: 85 x 35 x 50mm 13. Receiver (RX) size: 40 x 23 x 8mm 14. Microphone (TX) size: 30 x 30 x 10mm 15. Product Net Weight: 111g