If your Logitech Pure-Fi Anywhere no longer will work on batteries, but works fine when plugged into the AC power adapter, do the following:

1. Reset your Logitech Pure-Fi Anywhere. To reset your Logitech Pure-Fi Anywhere, use a pen or a paper clip to press the reset button (shown below) on the bottom of your Logitech Pure-Fi Anywhere for 2 seconds:

   

2. If resetting your Logitech Pure-Fi Anywhere does not fix the problem and the Logitech Pure-Fi Anywhere is under warranty, contact Logitech technical support.