Whether you’re warming up or winding down, move freely with BackBeat FIT 505 Series wireless sport headphones. Enjoy deep, rich sound, sweat-resistant nano-coating by P2i and a lightweight design for comfortable wearing all day. From the locker room to the lecture hall, you’re always on the move. Listen for up to 18 hours on a single charge, then use DeepSleep mode to conserve power when your headphones aren’t in use. Can’t find a place to recharge. Listen uninterrupted with the 3.5 mm backup jack. Up to 18 hours of wireless listening and talk time on a single charge.