SOS strobe. Strobe. Rechargeable. Water resistant. Impact resistant. CREE XP-G3 S3 LED. Built in power indicator. Dual switches design. USB charging cord. White and red dual outputs. Four brightness levels and two special modes. Nylon head strap. Modes: Turbo (550 lumens, 1h runtime), High (190 lumens, 17h runtime), Mid (33 lumens, 50h runtime), Ultralow (1 lumen, 330h runtime). Boxed with hanging tab.