Engineered with ergonomic, biomimetic cochlear-inspired design, these earbuds fit snugly without worrying about slippage, ensuring comfort for all-day wear and unrestricted movement during sports activities Featuring the latest Bluetooth 5.3 chipset upgrade, enjoy enhanced signal penetration, reduced audio loss, and latency for faster connections and stable, high-quality wireless transmission Immerse yourself in crystal-clear conversations even in noisy environments, thanks to advanced environmental noise reduction technology that precisely captures voices while filtering out background noise Equipped with a low-power consumption chip, enjoy up to 8 hours of continuous playback on a single charge, with an additional 28 hours provided by the charging case, ensuring uninterrupted enjoyment of your favorite tunes Designed with multiple processes to provide waterproof protection, these earbuds remain unaffected by sweat during workouts, ensuring worry-free daily use in any situation Specifications: Headphone Bluetooth: 5.3 Material: ABS Chip: AD7016 Speaker: φ15 Earphone Charging time: 1.5H Listening time: 8H Talk time: about 4H Headphone capacity: 80mAh Standby time: 28H Earphone Station Charging time: 2H Battery capacity: 400mAh Standby time: 180 days Charging times: about 4 times Package included: •2 x Bluetooth Earphones •1 x Charging Case •1 x Charging Cable •1 x English and Chinese User Manual