The co-founder of Chinese smartphone maker OnePlus is taking on Apple with $99 wireless earbuds LONDON — The co-founder of Chinese smartphone maker OnePlus is challenging Apple with a cheaper alternative to the tech giant’s popular wireless earbuds. Carl Pei helped create OnePlus with ex-colleague Pete Lau in 2013. OnePlus attracted a following by making cheap Android phones with attractive specs. Pei left the company in October. Now, Pei is back with a new hardware venture called Nothing , which aims to develop a series of smart devices connected through an app. On Tuesday, the London-based start-up debuted its first...