mtbc | Electronics reconfigured

Some weeks ago I mentioned replacing the cheap Chinese in-ear headphones that I often use when I work out. The new ones are sounding good. Recently I found them sitting in their cradle getting all excited, with flashing and talking and whatnot. Perhaps that's coincidence, but since then they talk to me in what I suspect is the Chinese of their birthplace, rather than in the English they previously offered for, pairing, power off, etc. Fortunately they still serve fine for my workouts.