For $350, you can find a store in any US City to get an Apple watch, pair it with a FIIO UTWS3 and have it play music to your
Traillii. In addition, it can take phone calls, send and receive text messages, tell you the hourly weather and windspeed and direction, time your hard boiled eggs or parking meter, pay for your coffee at Starbucks or any merchant that supports Apple Pay, measure you heart rate, calories burned, call 911 if you fall and can't get up, provide a flashlight in the dark and give you daily news. It's also the most accurate timepiece in the world because it syncs with the NIST atomic clock. That is an unbelievable return on investment.