XtremeMac Luna SST Dual Alarm Clock with Detachable Speaker for iPod and iPhone (Black) Alarm Clock Features Dual Independent Alarms With A Detachable Speaker Perfect Bedside Dock Detachable Speaker Total power: 15W RMS Signal to noise ratio: &gt;75dB Dual 2.0 ported drivers Includes 4 & 120 speaker connection cords Includes AC adapter and wireless remote. Battery backup for clock.