Fantastic hunting @iqbaladan, this is great personally I do not have very good references to these solar housings, some time ago I bought one for my iPhone 6 and to get the most out of it I would sunbathe my phone as much as possible to get charge, but consequently my cassette was toasted and eventually crumbled to pieces I hope and this is not so. In the same way great hunting.
RE: SUNNY CASE - Solar Battery Case for iPhone