Donb t let dead batteries kill your buzz. Small but mighty, these 1.5 volt alkaline cell batteries are perfect for powering all of your smaller vibrating toys from our extensive selection of bullets and mini vibes. Thereb s nothing like the frustration of a battery that loses its juice just as your play time is heating up -- thatb s why we created our own line of long-lasting, dependable alkaline batteries to keep the entire Doc Johnson collection going strong.