【Dual Mic Noise Reduction】Smart call noise cancellation technology accurately captures voice, ensuring clear communication even in noisy environments. 【Open-Ear Ergonomic Design】Non-intrusive design maintains ear canal breathability for enhanced comfort during extended wear. 【Proprietary Sound Isolation】Unique algorithm and structural design minimize sound leakage, enhancing call privacy and audio experience. 【High-Quality 16.2mm Driver】Combined with directional sound transmission for natural and clear voice reproduction. 【Extended Battery Life】Up to 10 hours of use on a single charge, with a total of 40 hours when used with the charging case. Specifications: Model: TS05 Bluetooth-compatible Version: 5.4 Bluetooth-compatible Protocols: HFP, A2DP, HID, AVRCP, AVCTP, AVDTP Chipset: JL7003 Battery Capacity: 70mAh per earbud, 700mAh charging case Charging Time: 1.5 hours Total Usage Time: Up to 40 hours with charging case Driver Size: 16.2mm Ear Hook Material: High-elasticity TPU Package included 1 x Charging Cable 1 x Pair of Earphones 1 x Charging Case 1 x English and Chinese Manual Specifications Brand Langsdom Color Black Packaging Type Paper Box Plug Type (For Supply) N/A User Manual (Language) English and Chinese Gross Weight 0.211kg Volume Weight 0.118kg Package Length 12.500cm Package Width 10.500cm Package Height 4.000cm