【Exceptional Audio Experience】Equipped with 40mm large dynamic drivers and 20Hz-20kHz frequency response range, delivering authentic shocking sound effects and 360° holographic stereo surround sound quality. 【Ultra-Long 66-Hour Battery Life】Features 800mAh large capacity battery providing up to 66 hours of playback time and 260 hours standby time, with only 3 hours charging time for full power recovery. 【Advanced Bluetooth-compatible 5.4 Technology】Utilizes Bluetooth-compatible 5.4 for more stable connections, low power consumption design, transmission distance up to 10 meters with enhanced compatibility. 【One-Hand Control Design】Freely adjust volume and switch songs with single-hand operation for convenient music control during daily activities. 【Lightweight Comfort Design】Made with PC+ABS material construction weighing approximately 190g, providing comfortable wear without pressure sensation for extended listening sessions. Specifications: Material: PC+ABS Bluetooth-compatible Version: 5.4 Speaker Size: 40mm Impedance: 32Ω Battery Capacity: 800mAh Music Time: 66 hours Charging Time: ≤3 hours Standby Time: 260 hours Frequency Response: 20Hz-20kHz Transmission Distance: ≤10m Product Weight: 190g Package included 1 x Wireless Headphones 1 x English and Chinese Manual 1 x Charging Cable Specifications Battery Yes Brand AZEADA Certificate CE-RED,CE-RoHS ColorStyle A Connection Bluetooth Packaging Type Colored Box User Manual (Language) English and Chinese Gross Weight 0.442kg Volume Weight 0.859kg Package Length 22.000cm Package Width 20.500cm Package Height 8.500cm