Our signature Swiss Cougar headphones make your listening experience real and personal and the lightweight streamlined design offers you amazing comfort while its impressive list of features allows you to enjoy digital-quality music wirelessly and convert between music and phone calling mode freely. Features include: Bluetooth version: V4.2 EDR Distance range: 10m MP3/WMA Power capability: 100mW 3.5mm Cable Jack USB and SD Card Slots available Micro charging cable Packaged in an exclusive box