A:AnswerHi Lauroe, please refer to the link below for possible troubleshooting steps to fix this issue. I hope it helps. Regards, ^Ron
https://helpguide.sony.net/speaker/srs-xb31/v1/en/contents/TP0001599388.html
A:AnswerI'm thinking your laptop is wireless. Goto your Settings. In there you should see Devices or something similar
to that. That icon is where the Bluetooth, printers, mouse etc. will be. Open the icon and you should be
able to add your bluetooth speaker.
A:AnswerThey are very close in size. The 30 has a more square back where the 31 is a little more rounded. It should fit being the the 31 has a rounded back.
A:AnswerI have 2 of these, and they both play stereo. If you have more than one, you can use one as the left channel, and one as the right, and have more separation between channels, but on their own they will play stereo, with the left channel coming from the left side and right channel coming from the right side.
A:AnswerPress and hold the BATT (battery) button/ LIGHT button inside the cap on the rear side of the speaker for about 3 seconds until the lighting function turns off/on. By pressing and holding the button for about 3 seconds again, the lighting function turns on/off again.
A:AnswerHi, we highly suggest visiting the link below for more information about the specifications of this speaker. Thanks! ^Ron
https://www.sony.com/electronics/support/res/manuals/4734/ed61675070eff6e0a02e1fc3140ad783/47340391M.pdf
A:AnswerYes you can play music while charging. I LOVE my Sony XB40, I got the the XB30 for a friend The XB31 & 41 are newest models. I charge mine while playing music all the time. The sound on this little speaker is impressive! It fills your house full of music, and yard for bbqs. Some even ask to turn the volume down since it has nice loud capability. HIghly recommend this speaker!
A:AnswerIt gets pretty loud. At full volume you can hear it from anywhere in a small-medium sized home or apartment. Outdoors it's great for small parties. Even with people talking you can still hear the music from across a backyard from about 30/40 feet away when it's at about 75% volume.
A:AnswerI don't know exactly how many but for me I can tell you that it's pretty good the sound considering the size of this speaker. I don't know if you like high volume or too high?
A:AnswerHi pata,
This Bluetooth speaker doesn't have a USB port. You may refer to this link for the list of our portable speakers.
https://www.sony.com/electronics/wireless-speakers-docks/t/wireless-speakers
Regards,
David