Has Twitter been a success under Elon Musk – he’s tweeted a few stats, the device that can make your solar panels and battery even more efficient, now you can download and stream your Audible audiobook from your Apple Watch, we take a listen to the Focal Bathys audiophile headphones, we run our eye over the Oppo Pad Air tablet, the solutions from July to help you travel with your tech and we’ll answer all your questions in the Tech Guide Help Desk.