M18 Wireless Microphone Collar Clip Recording Equipment, Style: 1 In 1 8Pin 1. Sound channel: 2.0 2. Bluetooth protocol: 5.0 3. Battery capacity: 400mAh 4. Frequency response range: 100HZ-20KHZ 5. Signal-to-noise ratio: 75dB or more 6. Material: ABS 7. Scope of application: for cameras, cell phones, video cameras, computers, sound cards, microphones, recorders, mixers and other equipment 8. Accessories: headphones, wind shield, camera cable, charging cable, storage box 9. Weight: about 26g 10. Size: about 4.7 x 4 x 1.5cm Features: 1. Wireless recording VLOG, non-sensory wear, noise reduction effect, can filter noise and ambient sound, so that the sound is more stereo and clear 2. Built-in DSP reverb chip, intelligent filtering of environmental noise, with reverb effect, singing more sense 3. transmitter receiver are with 3.5mm interface, real-time ear return, while recording and adjusting 4. About 50 meters long-distance transmission, high-performance wireless technology, signal stability 5. 360-degree high-definition sound pickup, built-in microphone, equal acceptance of sound in all directions, the human voice clear restoration 6. OLED display, good brightness, high contrast, clearer recording, real-time display of various modes of status 7. Lightweight and portable, easy to use