The PSLPWMP5 is an innovative new pedometer from Pyle - it's completely waterproof, counts your steps, and has a built-in MP3 player. Get moving with your favorite music on land or in the water and stay on top of your workout data. The pedometer function counts your steps and calculates your distance, total time, and calories burned. In the water, this unit functions as a lap counter to calculate your laps and swimming distance. The universal back clip design clips to anything: your shorts, shirt, skiing goggles, belt, collar, etc. The player and headphones are IPx8 waterproof certified for up to 3 hours of usage up to 3 meters deep. Designed to withstand water, dust, and snow, the PSLPWMP5 is the ultimate accessory for active music listening.