1.Positive surface for iphone,Back surface for android.
2.Non-slip design,strong and sturdy.
3.Pass 10000 times Plug & Unplug Test.
4.connector / rugged:4 contacts for signal transmission, 2 link accessories, 1 power supply, 1 ground, to ensure that the charge transmission, security and stability.
5.Double-sided insert Cable, 2 usage in 1 cable.