HP Poly Sync 20+M Speakerphone USB-C/A Adapter. Device type: PC, Product colour: Black, Cable length: 0.715 m. Connectivity technology: Wireless, Bluetooth profiles: A2DP, AVRCP, HFP, HSP, USB connector type: Micro-USB A, USB Type-C. Power source type: Battery, Battery technology: Lithium-Ion (Li-Ion), Talk time: 20 h. Compliance certificates: CCC, CB, EAC, BIS, Federal Communications Commission (FCC), CE, BSMI. Width: 34 mm, Depth: 95 mm, Height: 182 mm