Automatic Memory Digital LED Display Intelligent Apple Lightning Port Charging / Data Cable Preset time control charging, prevent overcharge to the mobile phone, save energy. LED digital display. Charging time, current voltage is clearly visible. Over current protection (3A current protection, disconnect output). Intelligent storage, automatic memory last set. Easy to operate (Click the button to increase the default time, double-click the button to reduce the default time). Specifications: Length: 1 meter Environment friendly TPE rubber Tinned copper conductor.