Get BIG sound from a small package Reach audiences up to 150 people, in rooms up to 1,000 sq. ft.Power this portable unit using either the internal rechargeable battery or supplied AC adapter. Compact 20 watt amplifier will run for 30 hours on internal power pushing sound through a 6 1/2'' internal speaker. Includes controls for treble and bass, reverb/echo, volume for wired mic, volume for wired CD input, and volume for wireless mic.Wireless handheld mic is rechargable and has an operating range of 64 to 128 feet. Builtin storage compartment, carry handle, and power cord standard. Also comes with carry case.