Introducing the Yo-yo phone, it's a bonkers concept phone created by US designer Shaik Ridzwan for NEC.

Attention-to-detail-wise we like the fact that the headphones wrap around the rotund handset in a yo-yo stylee, apart from that we're not particularly impressed.

It looks a bit like a pastel-toned, circular version of the Serene.

Maybe we'd be more impressed if there was a video showing someone "walking the dog" with it.

Now that would be cool.