Since it’s such a simple accessory, we’ll keep our review of Hisy brief: it works. Press the button with the Camera app open, and it’ll take a shot. There are no surprises or flashy features, which isn’t necessarily a bad thing. We were able to reliably snap shots from a distance of around 30 feet away, typical of Bluetooth wireless, and considerably further than most people will need for taking self-portraits. The stand holds…