One platform for every speaker you run
Relay turns inexpensive hardware into a managed audio network: live paging, automated bells, background music and emergency alarms — with the controls, guardrails and audit trail a real operation needs.
Reach anyone, anywhere, in seconds
Page from the desktop dashboard or the mobile app: speak live from your device's microphone, play a pre-recorded clip from your library, or type a message and let text-to-speech read it on the device itself — no cloud voice round-trip.
- Target everything, a zone, or a hand-picked set of devices
- Priority levels, delivery confirmation and per-device playback receipts
- Schedule announcements per-device in each device's own timezone
- Save any page to a library and re-send it in two taps
- Interrupted mid-announcement? Devices resume the page where it left off
Bells that ring themselves — correctly
Build recurring schedules for class periods, shift changes and breaks. Devices keep the schedule locally, so bells ring on time even if your internet doesn't cooperate.
- Per-day patterns, per-schedule timezones, multiple schedules per site
- Tone repeats: ring a short chime up to 10× with a configurable gap
- Overlap protection — Relay refuses schedules where one bell would ring over another
- Holiday calendar and quiet hours silence bells when the site is closed
- Upload your own tones, or use the built-in bell library
Ambience that knows when to step aside
Stream internet radio or your own playlists to any zone. When a page or bell plays, music ducks out of the way in under a second and fades back when it's done — no dead air, no shouting over songs.
- Thousands of internet radio stations, searchable by genre
- Upload MP3 playlists — synced to devices for offline playback
- Radio hours: music starts and stops on your business schedule
- Independent volume levels for music, paging, bells and alarms per device
When seconds matter, everything else gets out of the way
A triggered alarm overrides music and pages instantly and loops until it's acknowledged and stopped. Every start, acknowledgement and stop is stamped with who did it and when.
- One-tap alarms from desktop or mobile, with pre-set reasons
- Drill mode — run practice alarms that are logged as tests
- Automatic escalation alerts if an alarm goes unacknowledged
- Per-device emergency kill switch that silences a unit instantly until re-enabled
- Optional maximum alarm duration so a forgotten alarm stops itself
Commodity hardware, managed like a fleet
A Raspberry Pi and an amplifier is all a zone needs. One install command enrolls the unit, and from then on it's fully managed: configuration, schedules, music and software updates all flow from your account.
- Raspberry Pi, Banana Pi, generic Linux, Windows and macOS agents
- Offline-first: bells, volumes and playlists keep working through outages, even across reboots
- Cryptographically signed over-the-air updates — the fleet upgrades itself
- Health monitoring: uptime, CPU temperature, disk and memory per device
- Proxy-friendly: isolated VLANs can route all device traffic through one egress proxy
The right people, the right speakers, nothing more
Roles and per-person device scopes decide exactly who can page which speakers. Everything — every page, bell, alarm, setting change and support action — lands in a tamper-evident audit history.
- Admin, Manager and Staff roles, plus fully custom roles with per-function permissions
- Consent-gated support: our team can't touch your data until you flip the switch
- Per-device broker credentials, signed device messaging, encrypted at-rest device state
- REST API with scoped keys, outbound webhooks and inbound triggers for integrations
- GDPR data export and configurable retention
Built for real buildings
Anywhere people need to hear the same thing at the same time.
Schools & campuses
Class-change bells, morning announcements, lockdown drills and PA across buildings — with per-building zones and holiday calendars.
Manufacturing & warehouses
Shift-change bells, break signals, forklift-area pages and evacuation alarms that cut through machine noise on schedule.
Retail & hospitality
Background music with automatic ducking, staff pages that don't blast customers, and closing-time announcements — across every store.
Ready to take control of your audio?
Start your 7-day free trial today. Provision your first device in one command and send a page in minutes.