700 lumen USB Rechargeable Headlamp
This headlamp is as high-powered as it gets at 700 lumens and can run for up to 5 hours on a charge.
The two included 18650 2200mAh lithium batteries can be charged in the headlamp with the included micro-USB cable. After 500 cycles, you can get replacement batteries right here.
It has 4 lighting modes: Middle-Side-All-Stobe.
The strong, durable, comfortable headband has a built-in whistle for safety.
It weighs 193g and is completely waterproof.