Rechargeable. Water resistant. Impact resistant. SOS strobe. 360 degree focus adjustable. Micro USB charging port. USB charging cord. Modes: High (780 lumens, 4h 45m runtime); Medium (245 lumens, 8h 15m runtime); Low (28 lumens, 81h runtime). Max beam distance: 220m. Flashing red rear warning light for better visibility. Partial pressure headband designed for comfort in use over long periods of time. Aluminum and polymer casing. Requires (1) Lithium battery (included). Boxed with hanging tab.