Wilson Electronics C-Booster Cell Phone Signal Cradle Booster for Blackberry Curve with Mini-Magnet Mount Antenna for Single User Enhances Cellular Signal for Both Voice & Data Built-In Cellular Signal Amplifier Up to 20X More Output to Cellular Site When In A Vehicle Receives Weak Signals Provides a signal up to 20 times stronger than your Blackberry Curve, improving reception and data rates Plug & Play Kit--easy installation and everything your need is in the box Automatically charges the phone's battery when placed in the cradle Simplifies hands free operation when used with a headset or Bluetooth device Comes with a 30-day money-back guarantee and a one-year manufacturer's warranty