Covers How to Check Battery Level on Ultimate Ears Wonderboom 2, and also, how to know if the battery is degrading over time. How to Check Battery Level on Ultimate Ears Wonderboom 2: Step by Step 1. First, Turn ON the Ultimate Ears Wonderboom 2 You won’t be able to read battery charge status unless … Continue reading How to Check Battery Level on Ultimate Ears Wonderboom 2