Pentax 67: Four LR44 as replacement for 4LR44/PX28/A544/476A battery
Dog Shock / Training Collar Batteries 4LR44 6V Alkaline PX28A, A544 - 10 Pack + 30% Off! - Walmart.com
Amazon.com: 5 x 4LR44 4A76 4G13 SR1154 4SR44 6v Eunicell Alkaline Battery Batteries New : Health & Household
4LR44 battery 6V for Dog Bark Collars Baterry » 25 years manufacturing Alkaline|Zinc|Button Cell|Rechargeable|Lithium|Camera Battery or AG|CR Button Cell
ANS 1520-0014: Alkaline battery, 4LR44, 8 pcs. at reichelt elektronik