AirPlay wireless stereo speaker system with rechargeable battery. Play and charge your iPhone or iPod via USB port and included cable. Wirelessly stream music from iTunes, iPad, iPhone and iPod touch via WiFi. Bongiovi acoustics DPS sound processing custom tuned 4 speaker drivers. Easy network configuration with free iHome connect app. Internal rechargeable lithium ion battery. Firmware upgradable. Charging base and recessed handle for convenient portability. Sleek, backlit touch sensitive capacitive touch control panel. Remote control.