Product Name: VARTA Energy 9V Block Battery Pack Size: 1 piece/pack VARTA Type: 04122 Size According to IEC: 6LP3146 Format: 9V – E-block Chemical System: Primary Alkaline Manganese Voltage: 9 V Size: 48.5 mm Weight: 46 g Performance: Perfect for basic needs Recommended Applications: Remote controls, microphones, alarm clocks, watches