The special cassette tape is not compatible with any retro boombox, but its internal backup battery is powerful enough to charge multiple mobile devices. Let’s go on for the Remix cassettes tape shaped power bank.
This is a pretty interesting and functional power bank that measures 115 x 69 x 20mm and weights 152g. As shown in the images, the portable charger is shaped as an old-school cassette tape and comes with subtle details, but the casing looks a bit thicker than original cassette tapes in order to hold 10,000mAh backup battery, and two 1A USB ports let you charge two mobile devices at the same time. Apart from that, the power bank also features two inputs and intelligent over-charged, over-voltage, over current and short-circuit protections.
The cassette tape shaped power bank costs $40 USD. If you like the retro design, head to Brando online store for more details. Additionally, you may like to check Famicom controller power bank and more via following tags if you want more options.