Leyuee Zoomable Headlamp LED Sensor Switch 3 Mode Super Bright Headlight with 4 pcs Rechargeable Batteries USB Charging Cable High Power Zoonmable Light: Zoomable Lighting model changed while you pull in or out the lamp head. Fit your different need for lighting. Sensor Lighting Model included: Easy control by IR Sensor Switch, Time saving & Hand Free for Controlling Your Lamp On & Off. Include Headlamp, 4 rechargeable batteries, Usb Charging Cable. Batteries are protected by Insulating film while transport. Please make sure the film been removed before the fist time use, otherwise it cant recharged. Avoid using your headlamp while charging! Warranty: Lifespan reach up to 100,000 hours. Brightness up to 1800 lumens, Zoomable, Adjustable, Sensor Switch, Durable, Hands-free, Comfortable; 3 Modes : Low ; Mid ; Strobe.