【Professional Bone Conduction Technology】Open-ear design allows you to stay aware of your surroundings while enjoying strong stereo sound quality with balanced three frequencies through professional op-amps and algorithms. 【16-Hour Long Battery Life】Extended 16-hour battery life ensures all-day use, with quick 10-minute charging providing approximately 120 minutes of playback time. 【Triple Protection Design】Professional dustproof, waterproof, and sweatproof construction makes it perfect for outdoor activities in rain or shine conditions. 【Bluetooth-compatible 6.0 Connectivity】Advanced Bluetooth-compatible 6.0 technology ensures stable transmission and crystal-clear calls with 10-meter working distance. 【ENC Adaptive Call Noise Cancellation】High-definition outdoor calling performance with ENC adaptive call noise cancellation technology resists ambient sound interference for clear communication. 【Comfortable Sports Design】Ergonomic hanging ear design provides comfortable long-term wear without ear canal insertion, perfect for running, cycling, and other sports activities. Specifications: Model: A29 Bluetooth-compatible Version: 6.0 Speaker Type: Professional Bone Conduction Speaker Battery Type: 500mAh Rechargeable Lithium Battery Music Time: 16 hours Charging Time: Approximately 90 minutes Standby Time: 10 days Transmission Distance: 10 meters Charging Interface: USB-C Input Voltage: 5V±5% Protection Level: Triple Protection (Dustproof, Waterproof, Sweatproof) Call Quality: HD with ENC Support Package included 1 x Earphones 1 x Charging Cable 1 x English User Manual Specifications Brand N/A Color As Shown Gross Weight 0.280kg Volume Weight 0.101kg Package Length 15.000cm Package Width 10.000cm Package Height 3.000cm