What headphones you use really comes down to personal preference. You can use wireless headphones if your audio player uses Bluetooth technology. You’ll need to pair your headphones to your device to establish a connection first. Wired headphones generally require a 3.5 mm plug to fit the port on your audio player, so you should verify that the headphones you choose are compatible before buying. Wireless headphones are less reliable but wired headphones keep you tethered to your device. Earbud-style headphones or over-ear headphones can be used with most audio players. No matter which you choose, you’ll want headphones that are sweat-resistant, lightweight, and that stay put during a workout.