EPOS/ Sennheiser PRESENCE Grey headset, UC, Bluetooth
(Including carry case and USB dongle). Technology: Bluetooth Version 4.0 /supported profiles: HSP 1.2 + HFP 1.6 + A2DP 1.2. Warranty: 2 4months. Frequency response(loudspeaker): 150 – 15,000 Hz. Speaker type: Dynamic, neodymiummagnet.