A OnePlus employee shows off a black leather concept phone that's based on the Concept One phone the company revealed at the Consumer Electronics Show in Las Vegas earlier this month. Yes, the one with the "disappearing" rear cameras. It's the same as the McLaren concept, but it's all black and featuring a leather case that seems chunkier than the other concept. It's a sleek-looking device we actually wish OnePlus would eventually use for future phones.