Untested as I don’t have batteries to try. The Vintage Realistic Modulette 500 Boombox Stereo Radio Tape Player is a classic piece of consumer electronics from the Realistic brand. This portable radio and cassette player features a sleek silver color and stereo L/R RCA audio outputs for high-quality sound. With the ability to play cassette tapes and tune into AM/FM radio bands, this unit is perfect for those looking to enjoy their favorite music in a retro style. Made in Taiwan, this untested Realistic Modulette 500 is a collector's item for enthusiasts of portable stereos and boomboxes.