When tested, it took about 5 hours to charge in full off of a computer. If you used a wall adapter, it would likely charge within the manufacturer-reported 4-hour time period. The package does not come with its own wall adapter. From full charge, the speaker played for nearly 14 hours (off and on) at varying volumes!
These advantages aside, sound quality is average and only plays out of one side, which likely indicates it's a mono speaker. The bass isn't particularly powerful and music sounds a bit like it's echoing down a hallway. If you consider yourself a sophisticated listener, you might not be happy with it. However, this speaker clearly isn't meant for high-end listening. For basic use, the sound is clear enough and perfectly understandable.
Perhaps the most frustrating part about this speaker is the strap, which is impossible to slide through the loop on the corner of the speaker. It would be great to hang this speaker from a shower head to listen to music while in the bathroom, but without the strap, that can't be done. This is a big limitation of use, especially if you want to hang it from something while you move, climb, drive, or perform some other activity.
However, at this price point, you can't beat what you get. It comes with the latest Bluetooth version and an auxiliary jack and cord for alternate ways to listen. Pairing is simple—just hold down the power button for 2 seconds and waiting for the red and blue flashing lights. And if you're not a huge audiophile, the sound is good enough. All in all, for an inexpensive, semi-rugged, compact speaker
, you're getting a lot of bang for your buck with this CRDC speaker.