The Nash Siren R4 Bite Alarm Batteries are designed specifically for the R4 bite alarms and offer powerful and optimal performance. Each package contains 4 AAA batteries, giving you plenty of spare copies for extended use. These batteries ensure that your bite alarms operate reliably and consistently, so you won’t miss any important bites during your fishing adventures. With the Nash Siren R4 Bite Alarm Batteries, you’ll always have the power you need for a successful fishing session.