Motorola Si300 Video Speaker Microphone

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The Si300 Video Speaker Microphone (VSM) combines voice communications, video, still images and emergency alerting in one compact, easy-to-use device. Now agencies can reduce the number of devices their public safety personnel need to do the job effectively.

An extension of the high-performing Motorola APX™ radio, the Si300 is a smart interface with an integrated remote speaker microphone and body-worn camera in one. It assures the reliable voice and mission critical sight, sound and security your officers need to work more safely.

The importance of capturing, storing and properly managing video evidence has never been greater for agencies of all sizes. Digital Evidence Management Solution (DEMS) combines audio and video into one easy-to-use Si300 VSM and leverages an exceptionally cost-effective storage system CommandCentral Vault to simplify video evidence procedures.

Product Video


    Five integrated microphones deliver the same audio quality as the APX™ 6000.

    Adaptive dual-sided operation uses beam-forming technology, so you can talk into either side of the VSM.

    Adaptive noise suppression adjusts the audio algorithm, cancelling out the noise as it changes in the environment.

    Adaptive speaker equalization adjusts the 0.5 watt loud speaker settings based on volume selection, so the sound is optimized for talker authenticity at lower volumes and speech intelligibility at higher volumes.

    Adaptive gain control adjusts the microphone gain based on how loud you talk into the VSM to ensure a consistent audio level on the receiving end.

    Adaptive windporting engages a purpose-built wind ported microphone to cancel out wind noise.


    Precise recording with a 210° articulating camera lens provides optimal field-of-view and flexible wearing positions.

    Realistic low-light performance records evidence that mimics the human eye.

    Prominent slider initiates video recording manually or automatically with a push of the emergency button.

    Pre-buffering captures critical evidence up to 60 seconds prior to initiating a recording trigger. 


    Smart interface extends the mission critical performance of Motorola APX™ radios. 

    Aggressive T-shape  makes the VSM easier to grip, even with wet or slippery hands.


    Update your software wirelessly and configure your VSM more efficiently without interrupting voice communications.

    Up to 20 Wi-Fi networks can be provisioned in the VSM so that users can seamlessly receive software updates, configure the device or upload multi-media to CommandCentral Vault at facility Wi-Fi access points or in the field via Wi-Fi hot spots.


    IP67 rating ensures the VSM can withstand 1 meter water submersion for 30 minutes.

    MIL-STD 810 C, D, E, F, G rating ensures you can rely on your VSM in the most extreme environments.

Performance Characteristics

Audio output

100+ phon


Battery life

~10 hours (standard battery)
~18 hours (high-capacity battery)


Land Mobile Radio (LMR)
Wi-Fi 802.11 b/g/n/ac
Peer-to-Peer and Wi-Fi Direct Support

Dual accelerometers


High capacity

2925 mAh

Low light performance

0.5 Lux

Noise reduction

5 integrated microphones with adaptive audio engine

Optical performance

Diagonal: 164°
Horizontal: 128°
Vertical: 68°

Recording format


Recording resolutions

1080p, 720p, VGA

Standard capacity

1950 mAh

Vibration notification


Video internal memory


Physical Characteristics

Built-in speaker

0.5 watt




Emergency button

Optional; programmable


220g (standard battery)
240g (high-capacity battery)

Specification Sheets
  • Batteries
  • Body-Worn Camera Accessories
  • Carry Accessories
  • Charger Accessories
  • Earpieces
  • Multi Unit Chargers

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