POLY Sync 60 Microsoft Teams Certified Speakerphone. Device type: Mobile phone/PC, Maximum operating distance: 30 m, Signal-to-Noise Ratio (SNR): 55 dB. Driver type: Dynamic. Microphone frequency: 100 – 6700 Hz, Microphone direction type: Bidirectional microphone, Microphone sensitivity: -45 dB. Connectivity technology: Wired & Wireless, Interface: USB/Bluetooth, Bluetooth profiles: A2DP, AVRCP, HFP, HSP. Power source type: Battery, Battery technology: Lithium-Ion (Li-Ion)