PKcell Ultra Digital Alkaline 6V 4LR44 Battery with 12.3-12.8mm Diameter, 24.4-25mm Height, and 6V Nominal Voltage. It has a high voltage, suitable for large current, low self-discharge rate, excellent leakage-proof, and safety characteristics
This High-Quality battery offers extended service life and consistent discharge to keep your device running and deliver power when you need it and is great for use in Household Items, MP3, Walkman, Toys, and other electronic products