Ca. 1990s Marshall MS-2 Micro Amp. Made in Korea. 1 watt.
Not sure of its exact age, but probably 1990s since it's made in Korea. Excellent condition, a few minor scratches. Works fine.
Volume and Tone controls, On/Off/OD switch. 1/4" input and headphone output jacks. Uses a single 9-volt battery (included) or standard 9v DC center negative power supply. (power supply is not included.)