YENKEE YHP 21BT Bluetooth Headphones - Superior ANC Technology, Long Battery Life. Discover the ultimate noise cancellation experience with our VIBE headphones. With remarkable ANC depth, these headphones effortlessly eliminate distracting sounds on public transport, in offices, or amidst the hustle and bustle of daily life, allowing you to stay focused or relax while listening to your favorite playlists. French: Bluetooth: V5.3 Bluetooth Profiles: a2dpavctpavdtpavrcphfpsppsmpattgapgattrfcommsdpl2cap ANC Profile: 42 dB Transmission Range: ≥10 m Frequency Range: 2.402 - 2.480 GHz Maximum Transmitter Power at 2.4 GHz - 2.4835 GHz: 5 mW Charging Voltage: 5 V DC (USB C) Charging Current: 500 mA Battery Capacity: 1000 mAh Standby Time: 800 h ANC Music Playback Time: 75-80 h Talk Time: 90 h BT Music Playback Time: 100 h Charging Time: 2.5 h Speakers: 40 mm/16" Sensitivity: 127±2dB Microphone sensitivity: -42±3dB ANC microphone sensitivity: -32±2dB Weight: 280g