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Considering purchasing a Roam SL for travel use.  It would not be connected to a WiFi system since most places I travel do not have reliable WiFi.  It would be connected to either Bluetooth or Airplay on my iphone.  I would be able to do any initial setup with it connected to WiFi as part of my home Sonos system.

My question is:  Would I still be able to use the alarm function?  That is, would the speaker wake up and play music?  Would using my phone as a hotspot work or be needed?

Or, how would I do this?

No. Alarm settings are not available when the Sonos app is not connected to your Sonos system, as stated in this support link: 

https://support.sonos.com/en-us/article/set-an-alarm-on-sonos

I use a mobile LTE router when travelling instead. Also note the information provided in this link too about the Battery Saver feature:

https://support.sonos.com/en-us/article/alarms-not-working-on-portable-sonos-products


Just to also say, I would perhaps not rely on a separate ‘mobile WiFi Hotspot’ for wireless network connectivity and note that hotspot must be a separate device to the one with the controller App installed on it, but I would use the mobile for your alarm too (as a backup) if you do decide to try that option.


Thanks, Ken.  I appreciate the guidance.

I do travel with a Verizon MiFi which has served us well on our travels.  So, I might be able to make this work?