This is cool little speaker that's so compact and easy to carry around. I tested the battery life after a full charge and it played for about 5 hours straight. That's excellent for this compact thing. The sound is loud & great. You can't beat this...

Though the speaker is only 1.5" across, it packs a good amount of sound. Charges via supplied usb cable. Havent tested to see how long the charge lasts, though hopefully enough for a ccouple rounds of disc golf.

Works good but the batteries only stays charged for about 1 hour of continuous use. (this is turned as loud as it will go though).Leave it pluged into the computer while using it and it works great.

The audio connector wire from the speaker is too short, only 3 inch long. The speaker will be too close to the notebook computer when plugging the audio connector to the computer.