Alimentatore da USB a 3v - Ricambio batterie a gettoni CR2032
USB input 5V2A, CR2032 fake battery output 3V1A, replace CR2032 for 3V battery. 1 Piece USB to 3V CR2032 Battery Charging Cable. CR2032 Battery Output: 3V1A. USB Alternative Dry Battery Clip Cable with Type C Head.