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 Mini USB wall charger or car charger (sold separately). An ideal charging solution if only one power outlet 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. This product is not intended to be used with two phones. Use only with a phone and a companion product.