Deluxe Defenders X6 Compact All Aluminum Metal Stun Gun with Ultrabright Flashlight - 5 Million Volt, 180 lumnes, uses removable Li-Ion 18650 battery Powerful 5,000,000 Volt stun gun with 180 lumen ultra-bright tactical flashlight that can drop even the strongest man within 2 seconds. Not much thicker than a cell phone, this stun gun is the first one of the conventional stun gun to use all metal design for durability. 180 lumens brightness (the highest for a conventional looking stun gun), Up to 100,000 hour CREE XP-G2 R4 LED bulb life. Type III aircraft grade aluminum alloy body - shock proof durable body Removable 18650 Li-ion rechargeable battery (4200mAH), battery can hold the charge for 1 year, charging by 110-240V AC, measures 4.8" x 2" x 0.9"