One sound.
Every device.

Soundoper was built to solve one specific problem: Windows doesn't make it easy to play the same audio through multiple output devices at the same time.

You have headphones and speakers. You have Bluetooth speakers and a monitor with built-in audio. You want the same music, movie, or call playing on more than one of them. But Windows expects a single default playback device.

The common workarounds — Stereo Mix, VoiceMeeter, virtual audio cables — work, but they demand technical knowledge and setup time. Hardware splitters mean more cables and less flexibility.

Soundoper makes this simple. Select your devices, play your audio, and every selected device receives the same sound — at the same time.