Lenovo XT53 Wireless Earphones • Hign-concerned Chemical None Material Plastic • Maximum wireless range[m] <10m NFC Technology No • Sound Isolating YES Category Earphones & Headphones • Earcups Type Sealed Max Output 10mW • Number Of Drivers 2 Charging Method Charging case • Headphone Pads Material Silicone Magnet Type other • Driver Diameter 13mm Total Harmonic Distortion 1% • Impedance Range up to 32 Ω Package List User Manual,Charging case,Charging Cable • Features waterproof,With microphone,Active Noice Cancelling With Microphone Yes • Resistance 32Ω Frequency Response Range 20 - 20000Hz • Sensitivity 96dB Function for Video Game,For Mobile Phone,HiFi Headphone,Sport,For Outdoor • Active Noise-Cancellation No Volume Control Yes • Control Button Yes Vocalism Principle Dynamic • Wireless Type bluetooth Connectors Type c • Communica ...