Product Specifications: High Quality Headphones Bluetooth 5.3 Hifi Sound Earbuds Bluetooth 5.3 Technology:Experience low latency and strong anti-interference with the latest Bluetooth 5.3 technology. Ultra-Long-Endurance:Enjoy up to 8 hours of playtime at 80% volume, ensuring extended listening sessions. High-Quality Sound:Indulge in PURE MONSTER SOUND® with rich bass and a frequency response range of 20Hz-20KHz. Aviation Aluminum Design:The aviation aluminum pull-out charging case adds durability and style to your audio accessory. IPX5 Waterproof Level:Dive into your music without worry, thanks to the IPX5 waterproof level.