Output Channel = 2ch
Power Output = RMS - Total Power 4W
Splash Proof = Yes (IPX4)
Shock Proof = Yes
Dust Proof = Yes
External Power Supply = DC IN 5V, 0.6A
Internal Power Supply = Battery 3.6V NiMH 1500mAh
Battery Life in Normal Mode, Bluetooth = Approx 8 hrs
Battery Charge Time = Approx. 5 hrs
Weight = 11.68 ounces