Choosing between the Cisco Headset 320 Series and the Cisco Headset 720 Series? Here's how they differ on platforms, audio and price, and which one fits your room.
Short answer: pick the Headset 320 Series if you want the one that costs $157 less. Pick the Headset 720 Series if you want the one that runs on battery, so it moves between rooms.
Both are Teams and Webex certified USB business headsets; the difference is audio and power.
Side by side
| Headset 320 Series | Headset 720 Series | |
|---|---|---|
| Price | $122 | $279 |
| Microphones | — | 2 MEMS beamforming mics, 80–6800 Hz |
| Speakers | — | 30 mm, 20 Hz–20 kHz |
| Weight | 321 USB 87 g; 322 USB 127 g | Mono 120 g; stereo 168 g |
| Warranty | 2-year limited | 2-year limited |
| Models | 321 single on-ear, 322 dual on-ear | 721 single (mono), 722 dual (stereo) |
| Speaker | 30 mm, 50 Hz–18 kHz, 32 Ω | — |
| Microphone | Unidirectional ECM noise-canceling, 150–6800 Hz | — |
| Cable | USB 2.3 m; RJ-9 2.0 m | — |
| Certification | Microsoft Teams (Q SKUs) | Microsoft Teams (Q SKUs) |
| Adapter | — | USB-C adapter with USB-A converter (orders from March 2025) |
| Connections | USB-A, USB-C or RJ-9 | Bluetooth: 5.0, 65 m range, two devices at once |
Specs are Cisco's published figures. Prices can change.
The key differences
- Microphones: the Headset 720 Series has 2 MEMS beamforming mics, 80–6800 Hz; the Headset 320 Series doesn't list microphones.
- Power: the Headset 320 Series runs on USB bus power; the Headset 720 Series on battery or USB.
Which should you buy?
- Choose the Headset 320 Series if you want the one that costs $157 less. See the Headset 320 Series
- Choose the Headset 720 Series if you want the one that runs on battery, so it moves between rooms. See the Headset 720 Series
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Still deciding? Read the Headset 320 Series guide and the Headset 720 Series guide, see Headset 320 Series alternatives and Headset 720 Series alternatives, compare them interactively, or send us your room details for a recommendation.
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