Specifications:Item Type: HeadlightBrand: ThorFirePowered Supply: 3 x AAA NiMH batteriesIs Battery Included: NoHeadlight Size:6.4 * 4* 5cmHeadband Size: 2.1*50cm (W x L) Features:1.Ultra bright and water resistant sensor operating headlamp in 3 modes. High-Low-Strobe.2. Adjustable elastic headband to provide comfortable and steady wearing experience.3. Provide bright illumination for outdoor activities like hiking、 camping、 fishing、 running; it can also be used as an emergency light or trouble light with its strobe mode.4. Sensor Operation、 equipped with a responsive sensor in front of the light to capture your gesture、 and thus to turn ON\/OFF the light with a simple hand wave Package Included:1x Headlamp  1x Micro USB Charging Cable