Documented specifications
HP Poly · HP listed Sync 40 standard, Microsoft Teams-certified and adapter variants in its current speakerphone family and support catalogue at review. Exact regional stock, purchased SKU, hardware revision, approved firmware, warranty entitlement and remaining support period were not established.
| Specification | Documented value |
|---|---|
| Host connections | PC by direct USB-A or USB-C cable and smartphone by Bluetooth are listed; Sync 40+ adds an included BT700 USB Bluetooth adapter Source ↗ |
| Microphones and speaker | Three-microphone steerable array, 50 mm speaker, 75 Hz to 20 kHz published speaker bandwidth and full-duplex audio are listed Source ↗ |
| Bluetooth | Bluetooth 5.1; A2DP, AVRCP, HFP, HSP and BLE profiles; up to eight paired devices and a published range up to 30 m Source ↗ |
| Battery | Rechargeable lithium-ion battery, published talk time up to 30 hours and charge time under five hours Source ↗ |
| Controls | Call answer or end, mute, volume, Bluetooth pairing and a programmable button are listed; the Teams control is model-specific and requires the Teams desktop application Source ↗ |
| Two-unit audio link | Two Sync 40 units can link wirelessly when inactive; the host-connected unit remains primary and HP Poly Studio selects party or stereo output Source ↗ |
| Published protection and environment | IP64 is listed; the user guide specifies 10°C to 40°C for operating, storage and charging Source ↗ |
| Size and weight | 38 × 102 × 273 mm and 610 g are listed Source ↗ |
Unlisted fields remain unverified. Platform compatibility and remaining support life require confirmation for the exact ordered model.
Keep the host at the center of the design
Sync 40 is a speakerphone peripheral, not a documented standalone SIP endpoint. A computer or smartphone supplies the account, signaling, meeting application, contacts and network path. Record the exact host, operating system, application build, selected audio device and account owner. Do not infer a registrar, dial plan, emergency route or independent telephone service from the call button or Bluetooth phone profile.
Run a host-specific acceptance matrix for speaker and microphone selection, notifications, answer and end, mute synchronization, hold, device switching, DTMF if required, host sleep and wake and reconnection after restart. A working music stream or visible pairing indicator is not a two-way-call result.
Distinguish direct USB, Sync 40+ and Teams variants
HP documents direct USB-A or USB-C connection for a PC and Bluetooth for a smartphone. The Sync 40+ variant includes a BT700 adapter for a wireless PC path; an adapter being optional for another SKU does not make the box contents or recovery process interchangeable. Record the full order code, connector, adapter and driver or management owner.
HP also lists standard and Microsoft Teams-certified versions. The user guide limits the Teams button to the Teams model and requires the desktop application; it says the Teams mobile application is not supported by that control. Treat certification and dedicated controls as variant- and application-specific rather than universal compatibility with every softphone or meeting platform.
Manage mobile pairing as a shared-room trust path
The exact specification lists up to eight paired devices, while the user guide documents a Secure Connection mode managed in HP Poly Studio Desktop that disconnects a paired mobile device after a call unless a button is pressed within 30 seconds. Enabling the mode also disconnects previously paired devices. Decide whether that behavior fits the room before rollout and prove its persistence after restart and update.
Limit who may pair, inspect and clear the device before reassignment, and prevent a former user's phone from becoming the unintended input, output or media source. Treat the BT700 PC relationship, native host Bluetooth and mobile pairing as separate radio paths with separate failure and support evidence.
Treat the two-unit link as one host-connected audio system
The user guide allows two units to link wirelessly only while both are inactive. One remains the primary unit connected to the host, and its settings apply to the pair; HP Poly Studio selects party or stereo output. This does not create two independently registered phones or two meeting identities. Record primary and secondary serials, placement, selected mode and the behavior when either unit is turned off or unlinked.
Validate remote intelligibility, simultaneous speech, echo, mute state and control behavior from each intended seat. Published microphone, room-size or wireless-range figures are planning inputs; table shape, reflections, ventilation, radio congestion and user distance still require an installed-room pilot.
Control charging, firmware and environmental scope
The manufacturer lists up to 30 hours of talk time, a charge time under five hours, IP64 and 10°C to 40°C operating, storage and charging limits. Those are controlled specifications rather than proof of an aged battery, a particular charger, outdoor use or a wash-down installation. Assign the cable, host port or charger, storage location, charge routine, cleaning method and battery replacement owner.
Use HP Poly Studio under an approved management owner for documented customization and updates, record the current firmware and settings and retain a recovery path. Test low battery, cable removal, adapter removal, host sleep, reconnect, update and factory-recovery behavior. No device, host, adapter, application, certification, room coverage, radio range, battery endurance, ingress protection, firmware, audio quality, availability, price, emergency route or live-call behavior was tested for this guide.
Sources & applicability
Primary references for the technical details above. Operational examples and planning checklists are VoIP.info editorial guidance.
- HP Poly USB and Bluetooth speakerphone family ↗
- HP Poly Sync 40 exact 772C4AA specifications ↗
- HP Poly Sync 40 product brief ↗
- HP Poly Sync 40 series user guide ↗
- HP Sync 40 series setup and user guides ↗
Examples require adaptation to your topology. No live PBX or hardware testing is claimed.