Sonos Ray Manual page 13

Trueplay™
Every room is different. Trueplay tuning measures how sound reflects off walls, furnishings,
and other surfaces in a room, then fine tunes your Sonos speaker to make sure it sounds
great no matter where you've placed it.
Trueplay works on iOS mobile devices running iOS 8 or later. During tuning, you'll move
around the room holding your mobile device.
1. Select > System, and pick the room you want to tune.
2. Choose Trueplay Tuning to get started.
Note: Trueplay tuning isn't available if VoiceOver is enabled on your iOS device. Turn
VoiceOver off in your device settings before tuning your speakers.
Auto Trueplay
Portable Sonos products like Sonos Roam and Move can tune themselves automatically. Auto
Trueplay uses your speaker's microphone to detect the environment and make periodic tuning
adjustments so you get great sound wherever your speaker is and whatever you're listening
to.
Go to > System, and select your portable speaker to turn on auto Trueplay.
Accessories
Find the perfect accessory for your Sonos system—tailored to perfectly fit your Sonos
products.
For a full selection of Sonos-compatible stands, wall mounts, chargers and cables, see
Accessories on our website.