Mini Bluetooth Earphones, Mini And Compact, Wireless Invisible, Non Flashing, Call Noise ReductionFeatures: Intelligent noise reduction: binaural HD calls. Built-in directional microphone enables high-definition binaural communication, suppresses ambient noise, amplifies voice signals, and allows communication without delay and obstacles. No delay in sound: enjoy games, Bluetooth 5.1 chip, achieve ultra-low delay in video and audio of games, excellent stability and fluency- to immerse you in the anime world. Comfortable to wear without swelling or pain: HIFI sound quality adds surging power to your song list, highly restores the original- sound, presenting a strong and wide range, with dynamic- highs and powerful bass. IPX5 waterproof: fearless- of sweat and rain. Adopting a multi-process and rigorous design, the earphones provide multi-directional splash- waterproof protection, which can effectively isolate rain and sweat, allowing the music to accompany you freely-. Music is not just about long battery life: low power and long standby, charging the charging box for 110 minutes, music playback time for 20 hours.Product Description:Playback time: (100% volume) Continuous playback for 5 hoursCharging box charges headphones 4 timesBluetooth chip: Jerry 6973D4Charging port: Type-cCharging box battery capacity: 230mah with protective plateHeadphone battery capacity: about 30mahHorn: 8mm composite film 32_% fifteenWorking current: 18maStandby current: 4uAEarphone size: 16.8mmPackaging size: 75x26x120mmSingle weight: 86gProduct standard configuration:2 * Earphones1 * Charging box1 * Charging cable1 * Packaging box1 * Instructions