For all size rooms


The Ultimate Video Conferencing Solution fits universal room environment.
A21S top view
A21S top view
A21S front view
A21S bottom view


Experience an innovative solution from Nearity that offers easy and tidy wired deployment and supports meeting rooms of all sizes and budgets.


Next Generation AI2.0 Algorithm

Our next generation Deeplearning Algorithms Noise Cancellation automatically reduces more than 300 common conference room noises including keyboard sounds, footsteps, air conditioning noise, etc.

Seamless Connectivity

With full-duplex technology, the A21S allows both sides of the conversation to speak and be heard at the same time.This ensures that conversations flow naturally, making it easier to collaborate and communicate.

Daisy Chain Ability

Extension from small to larger spaces:Your voice remains clear in any size meeting rooms, with daisy-chained speakerphones extending the voice capture range.

Easy to setup: Connecting up to 8 A21S units by POE to ensure every voice is heard for larger conference rooms.

Proven Stability

Experience unmatched stability and uninterrupted 24/7 usage with A21S, which has been proven with over 100k meeting rooms without any disconnections.

Universality Matters

The A21S business speakerphone is designed to adapt to various room environments, including those near busy streets, with glass doors, and loud AC noises. Despite these challenges, the A21S delivers exceptional audio quality, making it the ideal choice for professional meetings.

Compatible Platforms

Compatible with a wide range of video conferencing platforms, including Zoom, Skype, Slack, Google Hangouts/Classroom, GoToMeeting, BlueJeans, Twitch, Facebook Live, xsplit, OBS, etc.
NEARITY Compatible Platforms


Microphone Features
  • 8 MEMS microphones array
  • Effective pickup distance: 5m(16ft)
  • Sensitivity: -38dBFS 94dB SPL@1kHz
  • SNR: 63dBV/Pa 94dB SPL@1kHz,A-weighted
Speaker Characteristics
  • Rated output power: 4Ω/3W
  • Speaker frequency response: 220Hz~12kHz
  • Speaker volume: 80±3dB @1m
  • THD<5%
Audio Characteristics
  • Beamforming
  • Voice Activity Detector(VAD)
  • AI noise suppression
  • Full-duplex
  • AI Reverb and Echo cancellation
  • Automatic Gain Control (AGC)
  • POE UTP RJ45 (CAT6)
  • Up to 4/8* units via POE connection
Physical Characteristics
  • Height: 64mm (2.5 inches)
  • Width: 120mm (4.7 inches)
  • Depth: 120mm (4.7 inches)
  • Net weight: 544g (19.19 oz)
  • Color: Deep Tarnish
Power and Connectivity
  • External power supply: DC 48V/0.65A or USB 5V/0.5A
  • Compatible operating systems:Windows/Mac/Linux
  • USB port: USB 2.0 Type-C
Packing List
  • 1x A21S
  • 1x USB cable
  • 1x UTP ethernet Cable
  • 1x Adapter
  • 1x User manual