CES is a magical time of year for gadget lovers. Right out of the gate, Engadget has a hands on look at Bragi’s Dash earbuds. They’re wireless. They connect to your phone and each other. They have an accelerometer, a heart rate monitor, and an oxygen saturation sensor. It offers a personal trainer mode to provide you with feedback while working out and even an ambient noise mode to let you hear sounds from the outside world (like a friend saying “Cool earbuds!” or a concerned citizen screaming “THERE’S A BUS COMING DOWN THE–oh, hey, cool earbuds!”).