How to Play Audio on Two (or More) Devices at the Same Time on Windows

Windows makes you pick one audio output at a time. But plenty of times you want the same sound playing on more than one device at once — your laptop speakers plus a Bluetooth speaker to fill a room, or two headphones so you and a friend can watch the same thing. Here's every way to do it, from the built-in tricks to the simplest option.

The built-in Windows ways (and their catch)

Stereo Mix + "Listen to this device." Open the Sound Control Panel, go to the Recording tab, enable Stereo Mix, open its Properties → Listen tab, tick "Listen to this device," and pick a second output. It works on some PCs — but not all sound cards expose Stereo Mix, and it usually adds a noticeable delay, so the two devices drift out of sync and you hear an echo.

Windows 11 "shared audio." Newer Windows 11 builds can share audio to two Bluetooth devices — but it's limited to certain newer (Copilot+) PCs, so most people can't use it yet.

The popular tools (VoiceMeeter, Virtual Audio Cable)

Apps like VoiceMeeter and Virtual Audio Cable can route audio to several outputs. They're powerful, but they're built for audio pros: lots of virtual cables and routing to configure, and you still have to fight the same sync/echo problem by hand.

The easy way: SynchCast

If you just want it to work, SynchCast is a small Windows app made for exactly this. It plays your system audio through as many output devices as you like, at the same time, and keeps them in sync — no drivers, no virtual cables, no admin rights.

  1. Download and open SynchCast.
  2. On the Devices page, tick every output you want (speakers, USB, Bluetooth, HDMI).
  3. Click Start Broadcasting. Your PC's audio now plays on all of them at once.
  4. Bluetooth lagging behind? Nudge that device's delay slider until it lines up — no more echo.

Each device also gets its own volume slider, so you can keep one speaker quiet and another loud.

SynchCast playing audio on multiple devices at once

FAQ

Does it work with Bluetooth speakers and headphones? Yes. Bluetooth adds a little delay, so use the per-device delay slider to line it up. Note that your Bluetooth adapter's radio has a limit on how many wireless devices it can drive cleanly — SynchCast even tells you roughly how many yours can handle.

Will there be an echo? That's what the sync engine and delay slider are for — they keep the devices aligned so the sound lands together.

Do I need drivers or admin rights? No. It installs per-user and uses Windows' own audio system.

Is it free? There's a free 30-day trial. After that it's a one-time purchase — no subscription.

Bottom line

The built-in tricks work in a pinch but drift out of sync; the pro tools are overkill. If you want to play audio on multiple devices at once without the echo, try SynchCast free.

Play your PC's audio everywhere — in sync.

SynchCast sends your Windows audio to multiple speakers and headphones at once, with per-device volume and delay. Free 30-day trial, one-time purchase, no subscription.

Download SynchCast Free