USB adapter POLY Savi D400 UC Microsoft Teams Certified DECT 1880-1900 MHz Dongle

The POLY Savi D400 UC Microsoft Teams Certified DECT 1880-1900 MHz Dongle is a compact USB adapter designed to provide wireless connectivity for headsets and compatible devices. Operating within the DECT frequency range of 1880-1900 MHz and certified for Microsoft Teams, this adapter offers a straightforward way to connect audio peripherals to PCs and laptops. The small form factor and black colour make it suitable for portable setups and shared workspaces.

Advantages

This USB adapter simplifies wireless audio connections by using DECT technology in the 1880-1900 MHz band, which helps reduce interference from Wi-Fi and other common wireless signals. Certification for Microsoft Teams ensures compatibility with Teams client features such as call control and presence indicators where supported. The device’s compact size and USB interface allow for easy plug-and-play operation without requiring a large base unit.

Suitable for

• Office workers using Microsoft Teams for voice and video calls
• Remote employees who need a portable wireless adapter for headsets
• Hot-desking environments where a small, removable USB adapter is preferred
• Users seeking reduced wireless interference compared to typical 2.4 GHz solutions

Key specifications

• Wireless technology: DECT
• Operating frequency range: 1880–1900 MHz
• Interface: USB
• Certification: Microsoft Teams certified
• Colour: Black
• Form factor: Compact USB dongle

How to use

Insert the POLY Savi D400 UC dongle into an available USB port on your PC or laptop. Allow the operating system to recognize the device and install any required drivers or firmware updates; some deployments may require IT-managed provisioning. Pair a compatible DECT headset or audio device according to the headset manufacturer’s pairing procedure. Once paired, use the Microsoft Teams client settings to select the adapter as the audio device for calls and meetings.

Recommendations

Place the dongle in a USB port with minimal obstructions and maintain a clear line of sight to the paired headset where possible. Avoid locating the adapter near sources of strong RF noise or metal objects that could degrade DECT signal quality. For managed environments, keep device firmware and Teams client software up to date to ensure optimal interoperability and feature support.