Panasonic LR41 (192) micro alkaline button cell batteries. These batteries are widely used for small electronic devices and offer reliable, long-lasting power.

Key features and details:

Type: Micro Alkaline button cell battery. 

Voltage: 1.5V. 

Compatible models: Also known as AG3, G3A, 392, 192, and SR41. 

Common applications: Suitable for devices such as watches, calculators, toys, digital thermometers, and laser pointers.

Environmental features: Manufactured with zero mercury added.

Safety:  It is important to keep them out of reach of children.