Causes
- Stale Bluetooth pairing data between the collar and your phone — The COOLiFY 2S Pro pairs over Bluetooth 5.2 Low Energy, and the TORRAS app remembers the last bonded connection. If you previously paired the collar to another phone (or an old app install), the leftover bond on either side makes the app report the device as "offline" or "not in range" even while the collar is running at full blast around your neck — Tech Advisor hit exactly this in its review of the 2026 2S Pro/Cyber Fold lineup, describing the app as "a bit flaky... insisting that the device was not in range or turned on even when it was on full blast."
- Your region is not on TORRAS's supported app list — The TORRAS app (iOS/Android) is officially limited to the US, UK, Australia, Singapore, Japan, and South Korea. Outside those countries the app may install but never find the device, or the account/cloud features fail, because TORRAS gates app functionality by region. This is a documented limitation on TORRAS's own product FAQ, and it is the most common reason a brand-new 2S Pro refuses to show up in the app for international buyers.
- Phone battery optimization killing the app in the background — The TORRAS app needs to run in the foreground (or be exempted from battery optimization) while pairing and while controlling the collar. Aggressive Android battery savers and iOS Low Power Mode suspend the app's Bluetooth session; when you reopen the app it shows the device as disconnected even though the collar is still on.
- Missing permissions on Android — Android requires Location permission (and on newer versions Nearby Devices) to scan for Bluetooth Low Energy devices. If you denied location access during first launch, the app's BLE scan never sees the collar and pairing times out silently.
- Distance, interference, or another device holding the connection — BLE range is roughly 10 meters, and the 2S Pro stays bonded to the last phone it connected to. If the collar is more than a few meters away, or a second phone/tablet with the TORRAS app is nearby, the app on your current phone can fail to connect until the other session drops.
How to Fix
- Confirm the collar is actually discoverable — Power the 2S Pro on and watch the smart LED display: when it is ready to pair, the Bluetooth icon shows on the display. If the battery icon is flashing low, charge the collar first — a critically low battery can shut down the BLE radio, which looks exactly like a pairing failure.
- Delete the old pairing on both sides and re-pair — On your phone, go to Bluetooth settings, find the COOLiFY 2S Pro (or any "TORRAS" entry), and tap Forget. Then open the TORRAS app, remove the device from the app's device list if it appears, and restart the app. Power the collar off and on, then re-add it from the app's Add Device screen. This clears the stale bond that causes the "not in range" phantom.
- Check your region and app version — Verify you are in one of the supported regions (US, UK, Australia, Singapore, Japan, South Korea). If you are outside these and the app will not connect, the physical buttons give you full control anyway — short-press the power button to cycle Fan (green light) / Cool (blue light) / Hyper modes, long-press to switch to Heat (orange light), and use the app-less controls. Update the TORRAS app from the App Store / Google Play first if a newer build exists.
- Exempt the app from battery optimization and grant permissions — On Android: Settings → Apps → TORRAS → Battery → Unrestricted (disable optimization), and confirm Location + Nearby Devices permissions are granted. On iOS: Settings → TORRAS → Bluetooth and Location must both be enabled, and Low Power Mode should be off while pairing. Then force-stop and reopen the app.
- Get the phone close and eliminate interference — Hold the phone within 1–2 meters of the collar while pairing, turn off Wi-Fi on the phone if pairing repeatedly fails (2.4 GHz Wi-Fi shares the band with BLE), and make sure no second phone with the TORRAS app is connected to the collar. Retry pairing with the collar worn or resting on a table, not inside its donut carry case.
- Restart the collar's Bluetooth stack — Power the 2S Pro completely off (hold the power button until the display goes dark), wait about 10 seconds, power it back on, and retry. If the app still refuses to connect, restart your phone as well — a hung BLE service on the phone side is common after many pairing attempts.
- Contact TORRAS support if pairing never completes — If the app consistently cannot find the collar on a supported-region phone with permissions granted and the Bluetooth icon showing, the BLE module may be faulty. Contact TORRAS support ([email protected] or the support page at torraslife.com) with your order number — TORRAS offers 180 days of after-sales support and the unit is covered under warranty, so a confirmed radio fault gets replaced.