Philips DS9830W-37 - Manual (Page 12)

ActionFit sports headphones are about performance, power, endurance
and motivation. Fresh colors are inspired by the latest sports fashion
trends and lightweight yet durable designs deliver pumping sounds through
a comfy and secure fit.
Music is the fuel that fires you up from moment to momentum and
keeps you in your stride long after you have left the track or gym. With a
variety of wearing styles to choose from, you will find a pair that suits you
perfectly and lets you get the very best out of your workout, every time.
Tuned for sports