POLY Sync 20+M Speakerphone +USB-A to USB-C Cable +BT700 dongle +Pouch. Device type: PC, Product colour: Black, Cable length: 0.715 m. Connectivity technology: Wireless, Bluetooth profiles: A2DP, AVRCP, HFP, HSP, USB connector type: USB Type-A, USB Type-C. Power source type: Battery, Battery technology: Lithium-Ion (Li-Ion), Talk time: 20 h. Dimensions (WxDxH): 182 x 95 x 34 mm, Weight: 360 g. Package width: 209 mm, Package depth: 183 mm, Package height: 55 mm