Pyle PLBKA60BK 300 Watts Waterproof Portable Bicycle/Scooter MP3/Ipod Music Player (Black) 2'' High Quality Speaker - Playing time: 8 hours - Custom-tooled Bullet Shape Speaker housings 150 Watts RMS / 300 Watts Peak - Charging time: USB : 7 Hours- Easy Installation Speaker brackets are included for Cycling activity Frequency Response: 300-18KHz - Music Format : MP3 / WMA (below 384Kbps) - Bike carrying bag for MP3 is included Impedance: 8 Ohms - File System : FAT16 / FAT32 - Speaker Dimensions: 3.14''L x 2.17''W x 2.17''H Portable MP3 Player with in 2G Memory Capacity - USB 2.0 Full Speed Interface - MP3 Player Dimensions: 3.23''L x 1.97''W x 0.59''H