Binaural headset, 2 MEMS Active Noise Cancelling microphones, Bluetooth 5.0 & audio cable (2.5 mm twist lock and 3.5 mm jack plugs) connectivity, Microsoft Teams & aptX certification, up to 39 hours talk time & up to 1499 hours standby, 2.5 hours charge time, 25m Wireless range (line of sight) , foldable. *** CLEARANCE ITEM - LIMITED STOCK AVAILABILITY AT THIS PRICE *** .Stay focused with ANC that reduces background noise, helps you concentrate in busy open offices and boosts productivity on-the-go. Ensure clear business calls with a solution optimized for UC and switch easily between devices as you multitask. Certified for Microsoft Teams. Launch Microsoft Teams instantly with a dedicated button for Microsoft Teams via BTD 800 USB dongle, make clearer office and mobile calls with 2 advanced microphones that optimize voice pick up wherever you are. Every workday is different taking calls on the move, focused work in the airport, or a moment taken to enjoy music while working. Immers