This High Powered, Hands Free Head Lamp Comes Equipped With 37 LED Lights And A Max Power Of 50 Lumen That Will Last For Hours. Easy Access One Button On/Off Switch. Durable Design Is Water And Shock Resistant. Fully Adjustable Elastic Head Strap & Adjustable Incline Give This Head Lamp A Custom Fit. Perfect For Situations Were Your Hands Are Needed Elsewhere. 3 AAA Batteries Included.