How long does the battery last and how long does it take to charge?

The battery play time is up to 18 hours, though this may vary depending on music content, battery aging, volume level, and whether the light show is on. The battery charge time is less than 3.5 hours. The 18-hour estimate is achievable with the light show switched off, volume at level 18, and a Bluetooth streaming source. (Page 15)