world voice WV SERIES DJ LED CUBE-25NS BT Amplifier Cube With ECHO MIC System/FM/MP3/AUX/USB 30 W AV Power Amplifier  (Black)

A World Voice guitar amplifier (Professional CUBE Amplifier) is an electronic device (No Bettery Backup only Electronic Device) or system that strengthens the electrical signal from a pickup on an electric guitar, bass guitar, or acoustic guitar so that it can produce sound through one or more loudspeakers, which are typically housed in a wooden cabinet. A guitar amplifier or cube amplifier may be a standalone wood or metal cabinet that contains only the power amplifier (and pre amplifier) circuits, requiring the use of a separate speaker cabinet–or it may be a "combo" amplifier, which contains both the amplifier and one or more speakers in a wooden cabinet. There is a wide range of sizes and power ratings for guitar amplifiers, from small, lightweight "practice amplifiers" with a single 6-inch speaker.