I bought a black one and a REMORP for my wife’s bike. We just received it yesterday and it’s already saved her bacon this morning. She likes to ride early AM when it’s not quite yet daylight and wears full reflective gear plus flashing bike lights. Even with all that, a neighborhood lunatic started to pull out out in front of her this morning. She jammed the REMORP, sent the ORP into high gear, and the driver stopped. Whew! I guess the driver could hear, but could not see! THANKS ORP!