Poly Savi 8240 Convertible Wireless Office Headset - 3-Way Connectivity

Your day doesn't happen on one device. A desk phone call turns into a callback on your cell, then you're back at your computer for a Teams meeting — and switching headsets every time gets old fast. The Poly Savi 8240 wireless headset was Poly's answer to exactly that: one headset, three-way connectivity to a desk phone, a computer, and a Bluetooth mobile phone.

It's the convertible model in the Savi 8200 Office series — over-the-head, over-the-ear, or behind-the-neck, all three wearing styles included in the box, so it fits whoever's wearing it that day. One thing to know upfront: Poly discontinued this series in February 2026, with the Savi 8445 Office listed as the current replacement. If you're already standardized on the Savi 8240 and need more units, that's exactly what this listing is for; if you're buying fresh, it's worth comparing against the current model first.

What "3-way connectivity" actually means

The Poly Savi 8240 wireless headset connects to a desk phone, a computer, and a mobile phone — but not all three actively at once. It conferences between any two of the three connected devices simultaneously, which is a genuinely different feature than "three lines open at the same time." In practice: you can bridge a mobile call into a desk phone conversation, or take a softphone call while your desk phone stays connected in the background, and switch between pairs with a button press.

Not the same as your noise-canceling microphone

The noise-canceling boom mic on the Poly Savi 8240 wireless headset filters background sound out of what your caller hears. Close Conversation Limiting is a separate, configurable feature — set through Poly Lens or Plantronics Hub — that reduces how far your own voice carries to people near you. One protects the call. The other protects your privacy in an open office. Most spec sheets don't distinguish the two; this headset actually has both.

Range, battery, and two different numbers that matter

The Poly Savi 8240 wireless headset reaches up to 590 ft line of sight on its DECT connection to the base — about 180 ft in a typical office once walls and cubicles are factored in. The Bluetooth 4.2 connection to a mobile phone runs on a separate, shorter leash: up to 180 ft (50m). Two different technologies, two different ranges, both running through the same headset.

Battery life you'll actually see

Up to 7 hours of talk time per charge, with up to 30 hours of standby and a 3-hour full charge from empty — enough for a full shift, though heavier softphone or wideband use will pull that number down over the course of a day. Digital Signal Processing keeps voice sounding natural rather than compressed, running on wideband audio from 100 Hz to 6800 Hz.

Wearing styles and what's built for a shared floor

All three wearing styles — headband, ear hook, and behind-the-neck band — ship in the box, so the Poly Savi 8240 wireless headset adapts to whoever's using it rather than locking one person into one style. Up to three additional Savi 8200 series headsets can conference into a single base for training or group calls, and the headset is TAA compliant, which matters if you're purchasing for a government or regulated environment.

This is a headset built for a specific job: an office where calls genuinely move between three devices in the course of a day, and a single missed connection means a dropped conversation. If that's still your setup and you're already running the Savi 8240, this listing covers it. If you're buying new, weigh the discontinuation before committing a whole department to it.