Dwayne Johnson teamed up with Under Armour and JBL to make wireless headphones that won't fall off when you work out - here's what they're like

Under Armour's new workout headphones have been approved by The Rock himself.

On Thursday, Under Armour released the UA Sport wireless train headphones - Project Rock edition. Two years in the making, these are the first headphones under actor Dwayne Johnson's Project Rock line of workout gear with Under Armour.

The fully wireless headphones are rugged, sweat-resistant, and built for high-intensity workouts like weight lifting. Under Armour says Johnson has even tested the headphones during his own workouts - they passed.

The headphones cost $250 and are available starting Thursday.

Here's what they're like.