[Closed] which cheap google cardboard /vr viewer is worth buying if any?

I have a "VR Box" which can be had for £8-15 from the usual suspects.

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Good points:
- adjustable focus and inter-pupil distance
- takes a wide range of phones
- has gaps to allow headphones to be attached
- fairly comfortable to wear

Bad points:
- instructions in Chineselish (but not really needed)
- no proper Cardboard QR tag for it (but the defaults seem to work reasonably well and some folk have done their own - see link)
- no button to activate things, but YouTube lets you play stuff by just staring at the Play button so that works ok.
- adjustments are a bit wobbly.
- can't take smaller phones (e.g. iPhone 4/SE etc)

https://teslaandi.wordpress.com/2016/01/22/vr-box-2-0-qr-code-and-vague-review/

Bought a 'Goji VR' from carphone warehouse in ny sale for a belated xmas gift. Has a magnet/action button and a sticky back. Most importantly you can adjust the lenses in/outboard on the fly. Was well received, works fine* and is comfortable. Paid £13 which they claimed was 'less than half price' but now is £15 standard price. Scamps!

No place to poke a headphone cable but user has bluetooth