DESC: The Wilson Cellular Direct-Connect Power Booster can increase your cellular phone coverage up to 50 miles. It will greatly reduce disconnects, drop outs and noise. It also eliminates all microwave energy radiating into your head. Your phone will use less battery power with the improved signal giving you longer talk and standby times. Use the Direct-Connect in your car, boat, RV, home or office. A 12V DC power supply (cigarette lighter connection) and a 6' extension cable are included.