Aviation grade aluminum alloy, CNC technology intelligent manufacturing.
Surface anodic oxidation, metal color has deep inside the metal will not fade, can keep the luster.
The four corners of the screw is designed to be manually operated, easy to install.
Reserved earphone hole position, sound hole position and the charging port, each function is easy to control.
Shock sponge prevents internal impact from internal contact with cell phone, super hardness metal shell to avoid external impact.
All the signal source are hollow design, completely will not affect the signal.
Equipped with climbing rope increased outdoor sports sense of adventure.