??The signal booster helps users reduce dropped calls£¬ increase data rates in weak signal areas and originate calls from those dreaded "dead spots". Also£¬ it's ideal for hands free operation when used with a headset or Bluetooth device.<br> <br> Features:<br> Works with 3G WCDMA 2100MHz cellphone service providers.<br> Adjustable arms to fit most phones.<br> Boosts signals to and from cell tower.<br> Supports both voice and 3G data.<br> Up to 5-bar coverage in signal weak areas.<br> Installs easily in any vehicle.<br> <br> Specifications:<br> Network Support: 3G£¬ WCDMA£¬ GSM2100MHz£¬ Any Wireless<br> Frequency Range: 1920-1990MHz£¬ 2110-2180MHz<br> Booster Gain(dB): Uplink Gp¡ò40£¬ Downlink Gp¡ò40<br> Export Power(Po): ¡ò10dBm<br> Pass Band Ripple: ¡ñ3dB<br> I/O Impedance: 50©Ó/N connector<br> Noise Figure: ¡ñ4dB<br> Transmission Delay: ¡ñ0.5©Æs<br> Ambient Temperature: -10¡ú - +60¡ú<br> Power Supply: USB Port£¬ DC12-24V<br> Reliability: To the GB6993-86 standard<br> Electromagnetic Compatibility: To the ETS300 694-4 standard<br> Function: Power supply LED denote<br> Package Size: 19 * 15.2 * 5.6cm / 7.5 * 6 * 2.2in<br> Package Weight: 287g / 10.1oz<br> <br> Package List:<br> 1 * Signal Booster<br> 1 * USB Car Charger Adapter<br> 1 * Outside Antenna with 3.5m Cable<br> 1 * USB Cable<br> 2 * Large Size Cradle Arm<br> 2 * Middle Size Cradle Arm<br> 2 * Small Size Cradle Arm<br> 1 * Mounting Bracket<br> 1 * English User Manual<br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>