Eliminate the need to carry 2 chargers! This y-split cable charger allows for simultaneous charging of your phone and Bluetooth companion product. The cable fits precisely into your existing Micro USB wall charger or car charger (sold separately). An ideal charging solution if only one micro power outlet cable is available. No need to swap devices on a single charger. Note: Charging time will increase slightly for the phone when the companion product is simultaneously connected to the charger.