This is a great deal on a well-crafted, genuine Motorola accessory.It's a necessary item because the battery life of the Razr tends to be rather short-lived. The best part is the cool blue light with the signature M that glows on your dashboard signaling that it is on.Why four stars and not five? The cord is just a little too short to be able to comfortably talk on the phone while it is plugged into the charger.Still very worth buying.