BATTERY HEAR AID 10 16PK by RAYOVAC MfrPartNo L10ZA-16ZM

all hearing aids use batteries there are four different sizes of batteries the nice thing about hearing aid batteries is they are universal they're used everywhere in the world so whether you're in Canada or Russia or China your hearing aid will use one of these four batteries the smallest ones are the size ten they have the yellow tabs on them the next size up is a size 312 with brown colored tabs the next size up is 13 with an orange colored tab and the largest size 675 with the blue colored tabs regardless of what type your hearing aid users are what size yours uses they'll are going to look like this they'll be packaged in either four in a package or six in a package or eight in a package for most of the hearing aids the way you get into them is by turning them around to the one you want and opening up the little trapdoor the hearing aid will follow it in your hand you can see that