【Advanced Bluetooth-compatible 5.4 Technology】Experience stable and efficient wireless connectivity with the latest Bluetooth-compatible 5.4 technology, ensuring seamless audio transmission. 【HIFI Panoramic Sound】Featuring a customized 10.8mm dual magnetic diaphragm, these earphones produce rich, detailed audio with expansive panoramic sound effects, perfect for enjoying immersive music, podcasts, and movies. 【Directional Transmission】 The innovative open-ear design uses directional audio transmission to keep you aware of your surroundings while still enjoying private listening. The multi-curvature air arc structure ensures a comfortable fit for all-day wear without ear fatigue. 【DNN Environmental Noise Reduction】Integrated DNN noise reduction algorithm effectively suppresses background chatter, wind noise, and environmental sounds while enhancing human voice clarity- ideal for high-definition calls even in noisy environments. 【Water-Resistant Nano-Coated Build】With an IPX4 nano-coating, the body resists light rain, sweat, and liquid splashes, making it suitable for workouts, commuting, and outdoor activities in daily life. 【Impressive Standby Time】With up to 12 months of standby time, these earbuds are always ready when you need them. Specifications: Chipset: Bluetrum 5656C Bluetooth-compatible Version: 5.4 Pairing Name: DL3 Bluetooth-compatible Protocol: Bluetooth-compatible V5.4 + EDR + BLE Transmit Power: +10dBm (Ceramic) Bluetooth-compatible Decoding Modes: AAC, mSBC Bluetooth-compatible Frequency: 2402MHz-2480MHz Bluetooth-compatible Range: 10-15m Input Voltage: 5V Operating Time: 3.5h Earphone Charging Time: 1.5h Charging Port: Type C DC5V 1A Standby Time: 12 months Voltage: 3.7V Earphone Battery Capacity: 30mAh Polymer 401010 Maximum Charge Current: 30mA Maximum Discharge Current: 20mA Charging Case Battery Capacity: 300mAh Maximum Charging Case Charge Current: 300mA Maximum Discharge Current: 110mA 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 N/A Color White Packaging Type Colored Box Plug Type (For Supply) N/A User Manual (Language) English and Chinese Gross Weight 0.168kg Volume Weight 0.183kg Package Length 12.000cm Package Width 10.500cm Package Height 6.500cm