It is effortless to charge the headset via a magnetic charging dock. so you never need to worry about where your headset is located or whether it has enough power. The roadster is always on ready status. When call coming, you simply pick up the headset to answer the call and dock it to charger to end the call. Two ports pump out 15.5 watts of power. Thatâs enough to charge two iPads simultaneously. Roadster uses new BT V4.2 technology, compatible with various mobile digital products, provides HD voice quality. Surge protection, temperature control and more advanced safety features not only increased efficiency of device charging, but also the safety of your favorite car and gadgets.