A friend has invited you round for coffee. When you visit, you take back the phone charging cable that she’s left at your place so many times before. With a proud flourish, you produce the cable from your bag. But rather than thanking you, your friend grabs her phone and taps on the display. Music starts playing. Your friend points to the stylish Gira docking station and tells you that it can be used not only to play music via Bluetooth, but also to charge her phone wirelessly. Smart. A great idea for you too, you think.