The BTY AAA alkaline batteries adopt universal standards、 most of them suitable for cameras、 toys and many other electronic devices. Except that、 it features extensively long working life and high efficiency、 great for use. It is compact for you can to carry and convenient to use. The battery is really durable and reliable.<br /><br />- BTY brand mercury-free environmental friendly alkaline AAA batteries- Also known as size 15A and LR6.- Mega 20 batteries (individually wrapped by?pair?in retail packaging) <br /> The BTY AAA alkaline batteries adopt universal standards、 most of them suitable for cameras、 toys and many other electronic devices. Except that、 it features extensively long working life and high efficiency、 great for use. It is compact for you can to carry and convenient to use. The battery is really durable and reliable.<br /><br />- BTY brand mercury-free environmental friendly alkaline AAA batteries- Also known as size 15A and LR6.- Mega 20 batteries (individually wrapped by?pair?in retail packaging)                                                                                                                                Dimensions: 1.77 in x 0.39 in x 0 in<br />Weight: 1.06 oz