Auto-off feature?
When plugged into the charger, does the speaker auto-turn off if it's on idle or you don't play music out of it for a while?
If so, after how long of inactivity does it turn off?
Also, does it auto-turn on if it detects music?
No. It stays on. My wife and I actually like this -- it makes it easy for one of us to turn it on from anywhere in the house (rather than having to walk over to it, manually turn it on, wait for it to power up, then connect our device via Bluetooth).