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Bose 48822. Headset type: Monaural, Wearing style: Ear-hook, In-ear, Colour of product: Black. Connectivity technology: Bluetooth, Operating keys: Volume +, Volume -. Interface type: Mini-USB. Ear coupling: Intraaural. Battery technology: Lithium-Ion (Li-Ion), Talk time: 4.5 h, Standby time: 100 h |