A pair of practical in-ear headphones from JBL. They are easily connected with a cord.
From Amazon
JBL Reflect Mini Sweat Resistant In-Ear Sport Headphones with Highly Reflective Cable, 1-Button Remote and Microphone - Green
OnBuy
JBL Reflect Mini Sweat Resistant In-Ear Sport Headphones with Highly Reflective Cable, 1-Button Remote and Microphone - Green