Rail are a pair of cordless headphones from Skullcandy. No matter what you're using them for, we're sure you'll find them to your satisfaction.
From Amazon
Skullcandy Rail In-Ear Wireless Earbuds, 42 Hr Battery, Skull-iQ, Alexa Enabled, Microphone, Works with iPhone Android and Bluetooth Devices - Black
Freemans
Skullcandy Rail True Wireless Earbuds - White