Features:

• Voltage: 1.5v
• Capacity: 28mAh
• Dimensions: 7.9x3.6mm
• Also known as LR41, SR41, 392, 196.

Editor Reviews:

Product Description:
Used for clock, watch, calculartor, Game, Laser Pointer, Pen radio, Car Remote and many other electronic devices.

Rating : - most watt-hours per dollar
I've used about 10 of them so far with no problem. The packaging is, if anything, too robust. Each battery sits in its little pocket and a layer of single sided adhesive plastic seals them in. Nothing will move in this packaging!