The Smart LED Cable adds a very useful twist to standard Lightning cables by indicating the charging status of your mobile device. The LED lighted-connector illuminates a red light while your device is charging and a blue light once the device has been charged or when it's on standby.
Just connect the Smart Cable to your device and the LED lighted-end will illuminate a bright red colored light. This indicates the device is securely connected and is re-charging. The LED lighted-end will continue to illuminate red light until the battery has reached a 100% full charge.