USB input 5V2A, CR2032 fake battery output 3V1A, can replace one CR2032 3V battery. Suitable for CR2032 3V power supply product, without frequent battery replacement, saving money and environmental protections.
It can be powered by USB mobile power supply, USB charger, computer, etc. Red wire positive electrode, black wire negative electrode, easy to operate. 100cm cable length, small size, light weight, and easy to carry.
