Crystal Radio: A Passive, Electricity-Free Radio Using a Diode Instead of a Crystal

This used product is a unique, electricity-free radio that functions without the need for an external power source. Instead of utilizing a traditional crystal, it operates with a diode, capturing and playing radio signals through passive means. This radio offers a nostalgic glimpse into early radio technology while being both a conversation piece and a functional device for those interested in vintage electronics. Its classic design and innovative functionality make it a fascinating addition to any collection. Part Number: 1014188427 Sound Quality Selection: Mono Function: USB interface Material: plastic Battery Specifications: 1000MAh or less Band Type: Three-band Manufacture country: China Instructions included: No