4.59 Inch overall. Water resistant. Impact resistant. Rechargeable. SOS strobe. White and red LEDs. Large metal side button. Metal headlamp mounting bracket. 160m beam distance. MCC3 magnetic charging cable. Modes: Turbo (3000-800-600 lumens, 2 180 30m runtime); High (600-120 lumens, 300 30m runtime); Medium (120 lumens, 25h runtime); Low (30 lumens, 89h runtime); Moon (5 lumens, 20 day runtime); Red-High (60 lumens, 14h runtime); Red-Low (15 lumens, 70h runtime). Nylon headband. Color: Midnight blue. Requires (1) 21700 battery (included). Aluminum construction. Boxed.