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Compact round USB speakerphone with matte finish, BT51C dongle and cable

Yealink Network Technology Co., Ltd

Yealink Network Technology Co., Ltd SP92 conferencing device

SKU CH-TEQ0-BSF3F MPN SP92

A portable USB and Bluetooth speakerphone with AI noise cancellation, 30 m wireless range and up to 20 hours of battery life

  • TypeVoice Conferencing Device
  • ConnectivityBluetooth version: Bluetooth 5.3 Wireless range: Up to 30m/1
  • MicrophoneMic number: 1 Ai Noise Cancellation Microphone frequency res
  • SpeakerphoneSpeaker: 50mm x 50mm Speaker sensitivity: 80 dBSPL Speaker f
  • PowerBATTERY Music time: Up to 20 hours; Talk time: Up to 20 hour
  • Weight276g
  • Clear calls with AI noise cancellation and a single microphone
  • Wireless freedom up to 30 metres via Bluetooth 5.3
  • Connect three ways with USB-C, USB-A or Bluetooth
  • All-day power with up to 20 hours talk time and 2.5 hour charge
  • Lightweight 276 g design pairs with up to eight devices

Portable USB and Bluetooth speakerphone

The Yealink SP92 is a compact voice conferencing device built for professionals who need clear audio on the move. It connects through a USB-C/A adapter with the included BT51C dongle, a USB cable or Bluetooth 5.3. The unit weighs 276g and pairs with up to eight devices while maintaining two simultaneous Bluetooth links.

Wireless range and audio bandwidth limits

Bluetooth 5.3 provides a wireless range up to 30m or 100ft, so the speakerphone stays connected across a typical meeting room. The single microphone captures voice from 50Hz to 10kHz with AI noise cancellation, acoustic echo cancellation and reverberation cancellation. The 50mm x 50mm speaker delivers 80dBSPL sensitivity and a 50Hz to 20kHz frequency response, switching between music mode at 100Hz to 20kHz and talk mode at 100Hz to 8kHz with virtual bass enhancement.

Battery life replaces tethered conference phones

The internal battery supplies up to 20 hours of talk time or music playback and recharges in up to 2.5 hours at 5V/2A, removing the need for a constant mains connection during long sessions. Full duplex operation enables natural two-way conversation without the clipping common on half-duplex units. The upgrade is worthwhile for users who need a lightweight, platform-agnostic device that moves between desk, huddle room and travel bag, but not for installations requiring multi-microphone arrays or ceiling-mounted coverage.

Highlights

  • Clear calls with AI noise cancellation and a single microphone
  • Wireless freedom up to 30 metres via Bluetooth 5.3
  • Connect three ways with USB-C, USB-A or Bluetooth
  • All-day power with up to 20 hours talk time and 2.5 hour charge
  • Lightweight 276 g design pairs with up to eight devices

Specifications

BrandYealink
ModelSP92
TypeVoice Conferencing Device
ConnectivityBluetooth version: Bluetooth 5.3
Wireless range: Up to 30m/100ft
Connect to:
- USB C/A adapter with BT51C dongle;
- USB cable ;
- Bluetooth
Simultaneous Bluetooth connections: 2
Multiple device pairing: Up to 8 devices
Part NumberSP92 USB-C/A
MicrophoneMic number: 1
Ai Noise Cancellation
Microphone frequency response range: 50-10kHz
Full Duplex
Acoustic Echo Cancellation
Reverberation Cancellation
SpeakerphoneSpeaker: 50mm x 50mm
Speaker sensitivity: 80 dBSPL
Speaker frequency response range: 50-20kHz
Speaker bandwidth:
- Music mode:100Hz-20kHz
- Talk mode: 100Hz-8kHz
Virtual bass
PowerBATTERY
Music time: Up to 20 hours;
Talk time: Up to 20 hours;
Charging time: Up to 2.5 hours(5V/2A)
Weight276g

Questions about this item

Should I choose the USB-C/A version with the BT51C dongle or rely on Bluetooth 5.3 alone?

The package includes a USB C/A adapter with the BT51C dongle for a dedicated wireless link, plus a USB cable and direct Bluetooth 5.3 pairing; use the dongle for the most stable connection or Bluetooth for quick setup.

What does the 4-metre voice pickup mean in a real meeting?

The single microphone with AI Noise Cancellation captures speech clearly up to four metres in every direction, so participants around a small table are heard without leaning in.

How does Bluetooth 5.3 limit the way I connect devices?

Bluetooth 5.3 supports two simultaneous connections and remembers up to eight paired devices, letting you switch between a laptop and phone without re-pairing.

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