Discover the Duo S by Petzl, a robust, waterproof, and above all, ultra-powerful headlamp. It features 5 lighting modes and a boost mode, allowing you to handle various situations. Waterproof, it offers excellent shock resistance and drop resistance, and also includes a rechargeable battery that charges in just 4 hours. The Duo S is particularly suitable for group activities due to its anti-glare Face2Face function, allowing two users to face each other without dazzling. Handy lighting: wide beam with low intensity for extended autonomy Proximity lighting: mixed beam with an intensity suitable for comfortable close-range vision Movement lighting: mixed beam allowing for efficient navigation Rapid movement lighting: more powerful mixed beam to anticipate the terrain Long-distance vision: highly focused beam to see far BOOST mode for occasional access to the maximum power of 1100 lumens Weight: 370 g Technology: CONSTANT LIGHTING Beam types: wide, mixed, or focused Power source: Lithium-Ion ACCU 2 battery (included) Charging time: 4 h Certification(s): CE Water resistance: IP 67 (waterproof up to 1 meter for 30 minutes in fresh water) Headlamp delivered with Lithium-Ion ACCU 2 rechargeable battery (3200 mAh) and 110/240 V charger Petzl - Duo S - Headlamp