No, these aren’t cassettes as we know them. They are portable SPEAKERS! Get ready to raise the roof with your chicBoom or RockBoom Cassette Speaker! No one will guess that such delectably small packaging can pump out so much volume. You’ll be amazed by the crispness and clarity of purse sound that will be turning all the heads in your direction. This retro portable speaker is decked out in a stylish design and warning… it may cause others to stare. Small enough to fit in the palm of your hand but loud enough to get the party started.Connect to any listening device with a standard 3.5 mm stero jack. Built in rechargeable battery. Up to 2 hours of distortion free sound. Stereo cable and USB cable included.