POLY Sync 20+M Speakerphone +USB-A to USB-C Cable +BT700 dongle +Pouch. Device type: PC, Product color: Black, Cable length: 28.1" (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): 7.17 x 3.74 x 1.34" (182 x 95 x 34 mm), Weight: 12.7 oz (360 g). Package width: 8.23" (209 mm), Package depth: 7.2" (183 mm), Package height: 2.17" (55 mm)