Intelligent power digital display: The charging case is designed with a digital display to show real-time power Directional sound transmission technology: Detect the shape of the ear canal and automatically adjust the propagation angle of the integrated sound beam to ensure that the sound is efficiently introduced into the ear canal, effectively reducing 99% sound leakage More clear and sensitive microphone: Using ENC call noise reduction technology, effective shielding of environmental noise, calling is clearer Bluetooth-compatible 5.3 low latency: A new generation of low-power Bluetooth-compatible 5.3 chip, stable and quick connection ACS panoramic sound: Professional acoustic tuning, high-elastic composite diaphragm, with excellent density and elasticity, high-fidelity sound quality, large moving circle, shocking sound, allowing you to enjoy live music Specifications: Base Parameter Product Model M65 Master Chip Bluetrum PPG Ship 5656 Waterpfoof Level IP4 Compatible System IOS/ANDROID/WINDOWS Special Features 5.3 wireless Bluetooth; touch button Main Feature True wireless, binaural call, high-fidelity stereo music playback; magnetic charging, convenient and fast; multi-function button, easy to operate; one-touch callback function; storage charging bin Connect Parameter BLuetooth 5.3+EDR Other Parameter Battery Type Polymeter Lithium Battery Headphone battery capacity 55mAh Charging box battery capacity 400mAh Charging Type Charging box USB socket charging, headphone magnetic charging Headphone charging time About 30 minutes Charging box charging time About 2 hours Headphone life time About 6 hours Charging box chargeable times About 4 times Manipulation Mode Touth The firmware language English Material ABS Package included 1 x Pair of Bluetooth-compatible Earphones 1 x Charging Case 1 x Charging Cable 1 x English User Manual Specifications Brand N/A Color Green Packaging Type Colored Box Plug Type (For Supply) N/A User Manual (Language) English Gross Weight 0.108kg Volume Weight 0.065kg Package Length 10.500cm Package Width 8.600cm Package Height 3.200cm