OPPO Enco M31 Wireless Bluetooth in Ear Neckband Earphones with Mic, Support AI-Powered Noise Reduction During Calls…

【AI-Powered Noise Reduction】Industry-leading AI-powered noise reduction algorithm keeps your calls crystal clear in noisy conditions.
【Long Battery Life for Calls and Music】Sufficient power can support up to 12 Hours of use
【Certified Hi-Res Wireless Audio】Hear every detail in a broader spectrum of sounds with a frequency range extended to 40KHz.
【IPX5 Water Resistant】Earphones are professionally designed and are certified IPX5 waterproof.
【Supports Android and iOS】The earphones can be perfectly adapted to Android phones and Apple phones
Driver sensitivity 101.9dB @1kHz, Frequency response range 20Hz-20KHz（44.1KHz), 20Hz-40KHz（LDAC96KHz，990Kbps, Microphone sensitivity -38 dBV/Pa