Bose QuietComfort Headset Wired & Wireless Head-band Music/Everyday Bluetooth Black

Control type: Buttons | Carrying case: Yes | Battery type: Built-in battery | Wearing style: Head-band | Width: 1524 mm | Operating keys: Volume + | Weight: 240 g | Warnings: Keep away from children. | Recommended usage: Music/Everyday | Volume control: Button | Depth: 76.2 mm | Detachable cable: Yes | Ear coupling: Supraaural | Bluetooth: Yes | Warnings: Regularly check the condition of the batteries to prevent leaks. | Control unit type: On-ear control unit | Microphone type: Built-in | Cables included: Audio (2.5mm to 3.5mm) | Height: 184 mm | Connectivity technology: Wired & Wireless | Carrying case weight: 180 g | Fast charging: Yes | Battery operated: Yes | Operating keys: Volume - | Bluetooth version: 5.1 | Charging source: USB | Headset type: Binaural | Battery recharge time: 2.5 h | Continuous audio playback time: 24 h | Fast charging time: 15 min | Cables included: USB Type-C | Product type: Headset | Warnings: Do not use near sources of heat or flame. | Product colour: Black