SOS strobe. Water resistant. Impact resistant. Rechargeable. OSRAM P9 LED. Modes: High (760 lumens, 4h 45m runtime); Medium (245 lumens, 8h 15m runtime); Low (28 lumens, 81h runtime). 220m beam distance. Y-type partial pressure headband. 360 degree focus adjustable. 60 degree headlight angle adjustable to adapt to environment. Aluminum and polymer construction. Requires (1) Lithium battery (included), or (3) AA batteries (not included). Boxed with hanging tab. May not ship to Australia. May not ship Post Office.