POLY Sync 20 USB-A Speakerphone

POLY Sync 20 USB-A Speakerphone. Device type: PC, Product colour: Silver, Cable length: 0.715 m. Microphone frequency: 100 - 7800 Hz. Connectivity technology: Wireless, Bluetooth profiles: A2DP, HFP, HSP, AVRCP, USB connector type: USB Type-A. Power source type: Battery, Battery technology: Lithium-Ion (Li-Ion), Battery life (max): 20 h. Compliance certificates: RoHS, Federal Communications Commission (FCC), CE