The combination of hi-power, 600,000 volts and the compact size is perfect to carry with you anywhere. Make no mistake the Firefly Stun Pen is a very serious defense item and it is available in 2 different voltages, 600kv and 800kv. Of course we always recommend getting the highest power possible but they all are very effective and there is one priced for every budget. So don't let price stop you from buying the most advance technology in stun devices available, as any protection is better than no protection.
