Defender Xtreme Black Mini Stun Gun Keychain. Distinctive U Flash design Shell made from Aircraft Aluminum Electric Shock activated by push out propeller Large Capacity Lithium polymer battery Rechargeable Black Color LED Flash Light Includes USB Charging Cord Input Voltage: 5 VDC Current Capacity > 1.8 A Output Voltage: > 100kv L1.89 X W25mm X H17mm