Description:
The Poly Sync 20-M Speakerphone + USB-A to USB-C Cable is a compact, professional-grade portable speakerphone designed for on-the-go collaboration and conferencing. It delivers clear, rich audio and intuitive controls for call handling, volume, and mute all in a sleek form factor that’s easy to carry and set up anywhere. The built-in three-microphone steerable array captures voices clearly while reducing background noise, while full-duplex audio ensures natural two-way conversations without clipping. With up to 20 hours of battery life, Bluetooth® 5.1 support, and both wired USB-A/USB-C and wireless Bluetooth connectivity, Sync 20-M works seamlessly with PCs, Macs, smartphones, and cloud collaboration platforms like Microsoft Teams.
Specification:
| Specification | Details |
|---|---|
| Product Name | Poly Sync 20-M Speakerphone + USB-A to USB-C Cable |
| Model / Part Number | 7S4M1AA |
| Connectivity | Wired USB-A & USB-C (via included cable), Bluetooth® 5.1 wireless |
| Bluetooth Profiles | A2DP, AVRCP, HFP, HSP, BLE |
| Battery Life | Up to 20 hours talk time |
| Battery Type | Rechargeable lithium-ion |
| Charge Time | < 4 hours |
| Speaker Size | 40 mm driver |
| Speaker Frequency | 80 Hz – 20 kHz |
| Microphone Array | Three-microphone steerable array |
| Microphone Pickup Range | -2 m / 7 ft |
| Microphone Bandwidth | -100 Hz – 6.7 kHz |
| Full-Duplex Audio | Yes |
| Wireless Range | Up to ~30 m |
| Controls | Touch controls: call/answer/end, mute, volume +/-; push buttons: power, Bluetooth pairing |
| Visual Indicator | Status light bar |
| Compatibility | Windows 10/11, macOS; smartphones via Bluetooth |
| Certifications | Microsoft Teams Certified |
| Smartphone Charging | Built-in USB-A port |
| Dimensions (W×D×H) | -34 × 95 × 182 mm |
| Weight | -360 g |
| Cable Length | -715 mm |
| Included in Box | Speakerphone, USB-A to USB-C cable, travel case, lanyard |
| Warranty | Standard limited warranty (varies by region) |













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