CR2032 3V Lithium Battery ?10 Pack?

What is the significance of buying a button battery? SPECIFICATION : The CR2032 is a small battery with high density and high voltage of 3V. The coin button battery is very small, and the CR2032 is 20 * 3.2mm Security: Lithium coin cell batteries have a high voltage of 3V, and they have high capacity even if they are small. Stability : The battery can be used for up to 5 years of shelf life without leakage because they are sealed better and more stable. Durability : A good battery should be as long as possible. No one wants to change the battery often. Can be used for accessories, watches, computer motherboards, car keys, calculators, PDAs, electronic notepads, garage door openers, toys, games, MP3 players, digital recorders, doorbells, pet collars, LED lights, sporting goods, step counters , calorie counter, stopwatch, blood glucose meter, medical equipment, etc. note: Keep the battery in a dry, cool place. Do not charge or discard in a fire. Insert the battery correctly to avoid short circuits.