logitech group expansion mic

Logitech GROUP Expansion Mics (model 989-000171) are official add-on microphones for the Logitech GROUP video conferencing system (a popular all-in-one HD video + audio solution for medium to large meeting rooms). These expansion mics extend the audio pickup range of the base GROUP speakerphone, allowing clearer voice capture in bigger spaces or for larger groups without everyone needing to crowd around the main unit.

They’re sold as a pair (two microphones) and are plug-and-play—simply connect them to the GROUP speakerphone via the dedicated ports (they’re automatically detected and configured). This makes them ideal for boardrooms, conference halls, training rooms, or hybrid meeting setups in Nairobi offices/hotels.

Key Specifications

• Quantity: 2 expansion microphones (pack)
• Pickup Range Extension: Increases the effective microphone coverage from the base system’s ~20 ft (6 m) to up to 28 ft (8.5 m) diameter (or more depending on room acoustics and placement)
• Capacity: Supports groups of up to 20 people comfortably (base GROUP handles ~14; expansion mics add the extra reach)
• Microphone Type: Omnidirectional (captures sound from all directions), with beamforming for focused pickup and noise reduction
• Features:
  • Built-in mute button on each mic
  • LED indicator lights (shows mute status, active call, Bluetooth pairing if applicable)
  • Clear, natural voice reproduction with Logitech’s RightSound technology (echo cancellation, noise suppression)
• Connectivity: Wired extension cables plug directly into the GROUP speakerphone (cables included; optional longer 10m/33ft or 15m/49ft cables available separately for flexible placement)
• Dimensions & Weight (per mic, approx.): ~83 mm width x 21 mm depth, ~230 g each
• Compatibility: Exclusively for Logitech GROUP system (not standalone; requires the main GROUP speakerphone/camera kit)
• Other: No batteries needed (powered via the speakerphone), durable build for professional use

Performance and Use Cases

These mics deliver crisp, full-duplex audio so participants sound natural on calls (Zoom, Microsoft Teams, Google Meet, etc.). They prevent drop-offs in voice clarity at the table edges, reduce echo/feedback, and make hybrid meetings more inclusive. Reviews from users and sites like Amazon, CDW, and Logitech praise their reliability in large rooms—easy setup, no software tweaks needed, and significant improvement over the base mics alone for 15+ person sessions.

Common feedback:

• Great for extending coverage without buying a whole new system
• Mute buttons and LEDs are handy for quick control
• Some note the cables limit placement flexibility (but extensions help)