Yes, you can easily assign the Whistle device to another pet. All you have to do is:

• Remove the old pet profile from your device
• Delete the Bluetooth pairing on your mobile device. Click here if you have an Android device or here if you have an iOS device
• Set up the Whistle as if it were a new device

1. In the Whistle app, tap the Menu icon, and then select the pet who was using the device you want to reuse.

2. On the Timeline screen, tap the Settings icon.

3. On the Settings screen, under Device Details, tap Device details.

4. On the Device details screen, tap Remove Device.

5. In the message that appears, tap Remove.

1. On your iOS device, access the Settings app.

2. On the Settings screen, tap Bluetooth.

3. On the Bluetooth screen, in the My Devices list, tap the Information icon beside your Whistle device.

4. On the Whistle screen, tap Forget This Device.

5. In the options that appear, tap Forget Device. 

6. Exit the Settings app.

1. On your Android device, access the Settings app.

2. On the Settings screen, tap Bluetooth.

3. On the Bluetooth screen, in the Paired Devices list, tap the Settings icon beside your Whistle device.

4. On the Whistle screen, tap Unpair.

5. Exit the Settings app.

1. In the Whistle app, tap the Menu icon.

2. On the menu bar, tap Set Up New Whistle.

3. Follow the instructions provided. For more information, click here if you have an Android device or here if you have an iOS device.