Dual Buttons (IR Sensor & Non-Sensor) & 3 Light Modes Design 

2 separate switches, one controls 3 White Light modes, High Beam(180
Lumens, 5 Hours), Low Beam(60 Lumens, 10 Hours), Strobe(SOS, 5 Hours);
the other one is a inductive switch which controls 2 White Light modes,
High Beam, Low Beam, and when in high beam, you can activate the IR
Sensor Control, the headlamp will be on or off by hand wave within 6" in
front of the headlamp.

USB Rechargeable -- Built-in a USB Interface, just plug it into any USB
port with the USB cable included when charging, fully in 4-6 hours and
will provide up to 5 hours of constant lighting (in High Beam mode).
Never buy batteries again.

Durable & Lightweight & Waterproof & Adjustable -- High quality,
Lightweight (2.5oz), Waterproof (IPX4); Both headlamp body and headband
are adjustable: The lighting angle can be adjusted up to 60 degrees, the
elastic headband (Unstretched Girth: 12.2"-22") designed to fit for both
adults and children.

Dark Knight -- You can set your hands free whenever and wherever , ideal
for running, mountaineering, camping, fishing, caving, cycling,
construction work at night, etc..