Product Details  2.8 amps of knock down power. 4 prong/2 SPIKES Double shocking power.  Unit is only 4-1/4" tall, 2 1/8" wide and 1" t  2.8 amps of knock down power. 4 prong/2 SPIKES Double shocking power. · Unit is only 4-1/4" tall, 2 1/8" wide and 1" thick fits in a pocket or purse. · Built in Led Flashlight provides you with a light when needed. · Rechargeable battery. No need for batteries. Up to 60 days between charges under regular use. · Has a "on & off" safety switch to prevent accidental discharge. When the Safety switch is put in the "on" position, a small Red LED light will come on to warn you the unit is now ready to use. · Nylon Holster has belt loop included for those wanting to carry it on their belt. THis Stun Gun Has Built In Charger....Slides out from bottom...plugs into any 110v outlert