2. The adjustment of the indicator adopts adjustment and locking, which is flexible in operation and easy to use. 3. Any metal material, can be held in the palm, portable and easy. HD night vision, available day and night. Colour: black 1. The product is exquisite, large proportion, small size, light and high resistance. The product is aimed at high impact resistance; all forces are in contact face to face, exerting force to the durability of the product. Material: metal aluminium and plastic