VSGDFHDFH Rechargeable AAAA Batteries, 4-Pack 500mAh NI-MH for Surface Pen, Toothbrush, Wireless Mouse and USB Charger

Long-lasting batteries: these high-capacity 500mAh AAAA rechargeable batteries can be charged up to 1200 cycles, offering a cost-effective alternative to thousands of alkaline batteries. Versatile use: ideal for various devices like surface pens, alarms, LED torches, calculators, wireless doorbells, mice, bike lights, digital cameras, external batteries, Bluetooth headphones, and more.