User Manual Sony SRS-XB40 Extra Bass Portable Bluetooth Speaker

1 You can disable the auto off by : first connecting the ac adapter, then with the device turned off- press and hold the - + buttons at the same time for about 5 seconds, the BT indicator will flash white 3 times when turned off or 2 times when turned on.
2 the music center app can sync devices and color schemes.

this is what an outdoor web site says: HERE IS A BREAKDOWN OF THE IP STANDARD AS IT RELATES TO WATER PROOF AND WATER RESISTANT:
IPX0 – This means it’s not water resistant at all. Think of what happens to paper when it gets wet. It’s a mess and your novella is ruined.

IPX1 – This will protect a device from some water drops that are falling vertically on said device. I guess it’s possible for this situation to actually occur but so is winning the lottery. If you or someone you know has won the lottery, sharing is caring.

IPX2 – This will protect your thingy from some water drops when the device is tilted up to and including 15°. If you have your device at 16°, you are screwed, sorry but there are limits in the world.

IPX3 – Getting better, you can now spray your gear up to 60° from the top of the device. So that’s cool, I guess.

IPX4 – Now we are getting somewhere. This will keep “yo ish chill” from splashing water from any direction. So if you drop some cubes of ice into you scotch and it splashes, there is no need to worry. Well, except for those drops of scotch that didn’t make it into your tummy.

IPX5 – (this is where the super soaker is allowed). Will protect your stuff from water jets at any direction. Spray away kiddo, spray away.

On this model, you hold the button down that has the word "Batt" behind it. It'll either say fully charged or give you some preset percentages (such as 70%, 50%, or 30%) if the charge is diminishing. I will say that it holds a charge very well.