A:Answer Hello! While charging your Wonderboom 2 Portable Bluetooth Speaker, you'll notice that the LED light on top of the speaker will flash. When charging is complete, the light should turn of or stop blinking. You can also check the battery life of your speaker on the go by powering it on, and pressing the + and - buttons at the front of the speaker at the same time; 3 tones will indicate the speaker is fully charged, 2 tones means it's about halfway, and a descending tone means you should charge your speaker.
