Built in metal woven mesh, resistant to stretching and bending, with anti-interference effect when used for data transmission. Original quality. | 30 Pin Charging & Data Sync Cable, the maxium support 2.1A current output, to ensure data the charge of the rapid transmission. | Metal Plug, durable can plug pull out more than 5000 times, high charging efficiency, ultra data transmission, reduction, small power loss, improve the conversion rate of charging | Compact, heat-resistant, stainless steel connector heads slot in easily but securely and fit most cases. | The interior is wrapped in aluminum platinum to resist signal interference. On top of aluminum platinum, there is a layer of metal weaving, which is sturdy and durable.