This is a full-fledged mini amplifier with a cute, retro design reminiscent of a vintage radio and pop colors of black, burgundy, and aqua. This amplifier is meticulously designed, right down to the top handle and knobs, to match the stylish atmosphere of your room. Despite its compact size of just 137mm high, it features a 3-inch speaker that delivers authentic, powerful sound, and it also comes equipped with an overdrive so you can enjoy the distorted sound that only this amplifier can provide. It's also battery-powered, so you can play it outdoors.The back of the instrument has a hook, so you can hang it on your belt or other object and play it at home. Save batteries by using 9VDC (sold separately/recommended product number: KACA-1) in your room. Equipped with a headphone output, it's perfect for those who are stoic about their own sound. This is a stylish and authentic amplifier that has a retro feel but is perfectly suited to modern home conditions. ■SPEC Rated output: 1w Input: 1/4 inch x 1 Controls: Tone, Gain, Volume (On/Off) Speaker: 3 inch x 1 External output: Headphone out x 1 Other: 006P 9V battery (included) x 1 with DC terminal Body size: 137 x 133 x 64 mm