Music, art and light in microsecond sync. An open standard from the Open Home Foundation.
Sendspin carries the artwork, the controls, and the beat alongside the audio. A speaker, a tablet, and a lamp all act as one room. It's an open standard, so anything can join — including what you already own.
High-quality audio, in sync across every speaker. Lossless to your hi-fi, efficient to the kitchen smart speaker, all locked to the same beat.
Album art and now-playing info on every tablet and display. The hallway wall panel becomes a Now Playing screen, so nobody reaches for a phone.
Any screen becomes a remote. Skip, pause, change volume from anywhere in the house. Phone in your pocket or tablet on the wall, it's the same set of controls.
LEDs and smart bulbs take their colour from the album art and move with the music. Bass on the floor lamp, mids on the strip behind the TV.
Sound goes in as well as out. Plug a turntable, a CD player, or any line-out into a Sendspin device, and what it hears plays on every speaker in the house.
No install. Open this page on multiple devices, press Start listening on each one, and hear them lock together.
Sendspin is a standard, so any maker can build a speaker for it — and so can you. Whatever you use plays the same music at the same moment as everything else. You need two things: a speaker, and something to source the music.
The Home Assistant Voice PE ships with Sendspin out of the box. Its 3.5mm output plugs into the receiver or powered speakers you already own.
Run Music Assistant on a Raspberry Pi or any home computer. It sources the music and sends it to every Sendspin device on your network.
Run it on Linux, Windows, or an old Android phone with SendspinDroid.
Comfortable with electronics? SendspinZero gets you a Sendspin speaker for under ten bucks powered by ESPHome.
Sendspin doesn't lock you into a brand or a cloud. It's an open standard, run on your own network, governed by a non-profit. Nothing about your music leaves the house.
Which speaker you add next, which app you use, and how long your hardware keeps working are all your call. The spec is public, so no single company is in a position to make those choices for you.
The amplifier you've had for years, the speakers on the shelf, the hi-fi in the attic. An old phone or a ten-dollar board brings any of them in. With Music Assistant, AirPlay speakers you already own join the group too.
Everything stays on your home network. You never sign up for an account, and a one-time approval keeps the audio between your devices encrypted, so what you play stays in the house instead of going back to Big Tech.
Backed by the Open Home Foundation, a Swiss non-profit. Sendspin can't be bought out, paywalled, or shut down on a corporate whim.
Four software and hardware partners ship Sendspin support today. The protocol is open, so the aim is a catalogue you pick from on how it sounds, not on the badge.
Building something with Sendspin? Say hi in #sendspin-beta-testing on the Music Assistant Discord.
Hardware or software, anyone can build with it. Certify once; listeners hear the difference forever.
Get the whole-home story without building it: sync, discovery, pairing, and metadata are in the protocol. Wear the "Works with Sendspin" mark and help build an ecosystem of speakers, displays, and lights that listeners can mix and match.
Open spec, plus official SDKs in eight languages. The reference client and server are Apache 2.0 licensed.
