Hamilton Tombstone 510 Thread Dual Cartridge Battery

Features :

• Dimensions: 45mm x 18.2mm x 81mm
• Built-in 650mAh Battery
• Voltage Output Range: 3.2V - 4.2V
• Draws from both cartridges at the same time
• Includes an adapter to use for a single cartridge
• Inhale activated, buttonless technology
• Screw-in connector with built-in 510 thread, fits both 0.5ml and 1.0ml cartridges.