diff --git a/source/_integrations/sonos.markdown b/source/_integrations/sonos.markdown
index eae108cdd17..39eb5849526 100644
--- a/source/_integrations/sonos.markdown
+++ b/source/_integrations/sonos.markdown
@@ -24,10 +24,16 @@ The `sonos` integration allows you to control your [Sonos](https://www.sonos.com
 
 ## Battery support
 
-Battery sensors are supported for the `Sonos Roam` and `Sonos Move` devices on S2 firmware.
+Battery sensors are fully supported for the `Sonos Roam` and `Sonos Move` devices on S2 firmware. `Sonos Move` speakers still on S1 firmware are supported but may update infrequently.
 
 For each speaker with a battery, a `sensor` showing the current battery charge level and a `binary_sensor` showing the power state of the speaker are created. The `binary_sensor` reports if the speaker is currently powered by an external source and its `power_source` attribute shows which specific source is providing the current power. This source attribute can be one of `BATTERY`, `SONOS_CHARGING_RING` if using wireless charging, or `USB_POWER` if charging via USB cable. Note that the Roam will report `SONOS_CHARGING_RING` even when using a generic Qi charger.
 
+<div class='note'>
+
+The battery sensors rely on working change events or updates will be delayed. S1 battery sensors **require** working events to report any data. See more details in [Advanced use](#advanced-use). 
+
+</div>
+
 ## Alarm support
 
 The Sonos integration adds one `switch` for each alarm set in the Sonos app. The alarm switches are detected, deleted and assigned automatically and come with several attributes that help to monitor Sonos alarms.