【Active Noise Cancellation】Experience superior sound quality with ANC technology that reduces ambient noise by up to 20dB. 【Adjustable Stainless Steel Headband】The headband can be adjusted up and down to fit various head sizes, ensuring optimal comfort for all users. 【Long-Lasting Battery Life】Enjoy up to 8 hours of music playback or 7 hours of talk time on a single charge. 【High-Quality Audio】With a signal-to-noise ratio ≥92dB and 32Ω impedance 40mm drivers, experience clear and immersive sound. 【Advanced Bluetooth-compatible 5.3】Benefit from stable and efficient wireless connectivity with the latest Bluetooth-compatible technology. Specifications: Bluetooth-compatible Version: 5.3 Bluetooth-compatible Chip: JL 7006F82 Effective Communication Range: <10m Signal-to-Noise Ratio: ≥92dB Noise Reduction Depth: ≥20dB Speaker: 32Ω, 40mm driver Maximum Power: 3mW Microphone Sensitivity: -38dB±3dB Music Playback Time: Approx. 8 hours Talk Time: Approx. 7 hours Charging Input: Type-C, DC 5V Charging Time: Approx. 2 hours Battery Capacity: 400mAh Package included 1 x Headphone 1 x 1m 3.5mm Audio Cable 1 x 20cm Type-C Charging Cable 1 x English Manual Specifications Brand YESIDO Certificate CE,CE-RoHS Color Black Packaging Type Colored Box Plug Type (For Supply) N/A User Manual (Language) English Gross Weight 0.376kg Volume Weight 0.656kg Package Length 25.800cm Package Width 19.900cm Package Height 5.700cm