【Advanced Bluetooth-compatible Technology】 Featuring Bluetooth-compatible 5.4 and BES2700IHC2 chip for stable connectivity and efficient performance. 【Long-lasting Battery Life】 Enjoy up to 7 hours of music playback or 5 hours of talk time on a single charge. 【Comfortable Open-ear Design】 Lightweight, non-intrusive design for all-day comfort without blocking external sounds. 【Ultra-slim Charging Case】 Compact 24.5mm thin charging case for easy portability and storage. 【Quick Charge Capability】 A 10-minute charge provides 1.5 hours of music playback for on-the-go convenience. 【Dual-mic Noise Reduction】 Enhanced call quality with advanced noise-canceling technology for clear conversations. 【Water-resistant Design】 IP55 rating protects against sweat and light water exposure for worry-free use during workouts. Specifications: Bluetooth-compatible Version: 5.4 Chip: BES2700IHC2 Battery Capacity: Earbuds 60mAh, Charging Case 400mAh Playback Time: Up to 7 hours (music), 5 hours (calls) Material: PC+ABS Dimensions: 70.8 x 54.8 x 24.6mm Total Weight: 44g Water Resistance: IP55 Package included 2 x Earphones 1 x Charging Case 1 x Charging Cable 1 x English and Chinese User Manual Other items not include Specifications Brand ACEFAST Color Black Packaging Type Colored Box Plug Type (For Supply) N/A User Manual (Language) English and Chinese Gross Weight 0.084kg Volume Weight 0.072kg Package Length 10.000cm Package Width 8.000cm Package Height 4.000cm