The Aleratec Charge-Glo Sync Cable's (Black) special indicator glows red when your connected iPhone, iPad or iPod Touch is charging and changes to blue when it is fully charged! You no longer need to wake up your devices screen in order to check its charging status. With the Charge-Glo indicator, you can see if your device is charged at a glance! This high-quality cable also supports data sync for your compatible Apple mobile product. The Charge-Glo Sync Cable is perfect for use around the home/office or on-the-go when you need to charge your device in public areas like airports and cafes.