Can anyone recommend a AirPlay compatible HDMI dongle (like the Chromecast wotnot)? I go for a Apple TV but all I want it for is mirroring iPad or MacBook screens. I have a smart TV and a an XBox so don't need to replicate most of those features again with another device. I've looked on Amazon and done a bit of googling but cant find anything I'm confident will actually work. Also, a small HDMI dongle would be a bit more portable and neater when connected to my TV as it's all wall mounted with hidden cables.