Original Cross-Border New Private Model K80 E-Sports Game Bluetooth Headset Wireless

FreeBuds 4 adopts a semi-open in-ear design, supports active noise reduction 2.0 and adaptive noise reduction; is equipped with AEM human ear adaptive technology, supports dual device connection; charges for 15 minutes and plays music for 2.5 hours. Technical Parameters     model     T0004 Product Categories     TWS wireless earphone The main purpose     noise reduction Drive unit/diameter 14.3mm wide range generating unit Frequency response     up to 40kHz wireless function     wireless function     Bluetooth 5.2 Battery Type/Capacity 30mAh Headphone box battery capacity 410mAh charging time Charging the earphones with the box: about 60 minutes; wired charging with the empty box: about 60 minutes battery life Fully charged earphones, listening to music: 4 hours (noise reduction off), 2.5 hours (noise reduction on) Listen to music with the charging box: 22 hours (noise reduction off), 14 hours (noise reduction on) Specifications     Exterior color     ceramic white Product Size     Charging box: diameter: 58mm; earphone: 41.4×18.5×16.8mm weight     A single earphone weighs 4.1g Charging box: 38g (excluding earphones) The main parameters     Sensors: microphone sensor, wearing detection sensor Accessories/Standard Configuration Earphone × 1 pair Charging box × 1 USB-C charging cable×1 Quick Guide × 1 Safety information description × 1 Warranty card × 1 /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1