SteriPen Journey LCD Handheld Water Purifier Chemical-free water filter that takes the guesswork out of water purification Universal symbols on integrated LCD screen tell you when water is safe Displays dose selection (1/2 or 1 liter), battery status, and life limit Works for up to 8,000 cycles; takes only 48 seconds to purify 16 ounces Measures 7.3 by 3.3 by 1.6 inches (W x H x D); weighs 4.5 ounces Includes Black Neoprene Case and 2 non-rechargeable CR123 batteries LCD screen displays the user&#8217;s dose selection (1/2 liter or 1 liter), battery status and countdown timer Extra long lamp life lasts 8,000 cycles Features Purification timer progress