Just wind it up - no batteries to replace! Perfect for a glove compartment or purse and is always ready when you need it. One minute of winding will provide up to hour of use. Extremely durable. On a personal note, I have used this for six months in the backpack I carry on my wheelchair and it has not failed yet. This makes a wonderful gift for employees, family, friends, church members, etc. Features: Dynamo hand crank powered 3 LED flashlight Operates on high (3 LEDs), low (1 LED), or all 3 flashing Focused lens concentrates the beam of light Wrist strap Glow-in-the-dark ON/OFF button 3LEDMINIFLASH$9.50 Case of 10 3LEDMINIFLASH_CASE$85.00 Quantity Discounts Call us with your specs. We Specialize in Custom Designed Kits! For pricing, shipping delivery and other pertinent data, click the "INFO" tab. Simpler Life Emergency Provisions, Inc. 2035 Park Avenue, Suite 1 Redlands, CA 92373 (909) 798-8108 * FAX (909) 798-8718 1 (800) 266-PREP (7737) E-mail us at sales@simplerlife.com We accept most major credit cards!