The PepperPager contains two 10% pepper spray canisters and has an effective range of 8-12 feet and contains 10-12 one second bursts. This top quality self defense spray is rated at 2 million Scoville Heat Units (SHU's). The unique design makes it look like an ordinary pager...giving you a distinct tactical advantage. The Pepper Pager gives you powerful double action ability since the unit actually contains two dual-canisters with TWICE the power of key ring sprays. Place the PepperPager on your purse, waistband, belt, briefcase or vehicle sun visor. Looks like an ordinary pager. Always place the safety switch in the FIRE position in potentially dangerous situations. Now it's ready to work when you need it and everyone thinks you simply have a pager!