Halcyon Hview Mask - Black this light has two modes

this light has two modes

SAFT 14500 battery

breathable insulation fibers and polyester soft coating from the top

see examples here:

Halcyon Hview Mask - Black this light has two modesThe Halcyon H View Frameless Mask provides a superior wide frame view through some of the clearest Tempered glass available. The soft, silicone, frameless body provides superior fit and comfort and it is less susceptible to damage while packing easily in your luggage or dive gear bag. The frameless design also increases your field of view so you can get more of the big picture while also keeping a better eye on your dive buddy through increasing your