Seen them and did not know what they was exactly so had to get them and do research. They are wireless headphones from 1994 for kids. I guess maybe original Bluetooth hahaha. Does not have the power cord so couldn't test much. Put batteries in the headphones, left hear static right one nothing. Did still have the battery in the right and just a bit corroded but not bad. Selling as is for parts decoration or whatever. A movie prop or fix and add to the computer collection.