This is a timer-based fast charging data cable for iPhone with an intelligent power cut-off ability. Automatically power shuts off at a set time between 1-5 hours. This cable designed to protect your phone from overcharging and ultimately saves your phone's battery from damages and aging faster. It is a durable tangle-free braided cable, sturdy cable construction inside and out. Cable: Lightning Cable, 5A, 1M Material: aluminum alloy + nylon braided wire