"Product Description The Energizer Alkaline AAAA 1.5V Batteries deliver reliable and long-lasting power for compact electronics. Specially designed for devices such as wireless headsets, styluses, medical devices, glucose meters, and laser pointers, these lightweight batteries provide consistent performance you can depend on. With zero added mercury and leak-resistant construction, they are a safe and efficient choice for your everyday power needs. Technical Information Battery Type: AAAA Alkaline Voltage: 1.5V Model: LR61 / E96BP2 Pack Size: 2 Batteries (Blister Pack) Application: Suitable for compact devices (styluses, headsets, medical devices, laser pointers) Leak-Resistant: Yes Mercury Added: No Weight (per pack): ~20g"