Somic MS300 bluetooth 5.0 wireless headphones with cvc mic Somic MS300 provide you the perfect listening experience with the quality sound and unique design. CVC noise cancelling technology and high performance speakers with noise isolating earmuffs eliminate ambient noise. We use QCC high quality chipset bluetooth 5.0 version and it support faster and more stable transmission. Built in 1000mAh battery can offer up to 72hours playtime. Feature: 1. QCC Bluetooth 5.0 chip. 2. Large 1000 MAH battery, 72 hours of game time. 3. Microphone with CVC 8.0 noise elimination technology. 4. Connect to two devices at the same time. 5. Wireless + wired: support 3.5mm plug port. 6. 40mm dynamic driver for crystal stereo and deep bass.  Fashionable and simple appearance Specification: Microphone Microphone Dimensions: 6mm Directivity: Ominidirection Sensitivity: -36db±2db Impedance: ≤2.2KΩ Speaker Speaker Dimensions: Ø40mm Output sound pressure: 98dB±3dB Impedance: 32Ω+15% Frequency response: 20Hz-20kHz Working time 72hrs Net weight: 208g