http://www.steripen.com/freedom

Enjoy the Freedom to go anywhere with SteriPEN’s smallest, lightest and
first rechargeable UV water purifier. 

Eco-friendly, the SteriPEN® Freedom’s integrated battery recharges via a
micro USB B port -- recharge via computer, AC outlet or compatible solar
charger. The metallic green Freedom provides 8000 0.5L (16 oz.) water
treatments.  In 48 seconds, the germicidal UV light destroys over 99.9% of
bacteria, viruses and protozoa such as giardia and
cryptosporidium. One liter volumes may be disinfected by treating twice.
Perfect for outdoor, business and adventure travel. 

SteriPEN Freedom is highly portable (74g; 2.6 oz) and easy to use.
Using instant-on technology with LED indicators, follow 3 easy steps:

1. Remove the lamp cover,


2. Immerse the quartz-encased UV lamp and


3. Stir (auto-timed for 48 seconds).  The green indicator light lets you know
   when it’s safe to drink the water.  The versatile Freedom also serves as an LED
   flashlight. USB cable, AC Adapter and neoprene case included.

SteriPEN Freedom Specs

Dimensions: 13 cm x 3.5 cm x 2.2 cm (5.1 in. x 1.4 in. x 0.8 in.)

Weight: 2.6 oz. (74g)

Usage: Up to 40 treatments/charge

Treatment: 16 oz. (0.5 L) in 48 seconds; One liter volumes may be
disinfected by treating twice.

Battery & UV Lamp Life: 8,000 16
oz. (0.5 L) treatments

USB cable, AC Adapter and neoprene case included.