POLY Sync 40 USB-A USB-C Speakerphone. Device type: Universal, Product color: Black, Cable length: 41.3" (1.05 m). Frequency range: 75 - 20000 Hz. Microphone frequency: 100 - 6700 Hz. Connectivity technology: Wired & Wireless, Interface: USB/Bluetooth, Bluetooth profiles: A2DP, AVRCP, HFP, HSP. Power source type: Battery, Battery technology: Lithium-Ion (Li-Ion), Battery capacity: 5000 mAh
