This is a nice and neat little device that offers the chance to boost the local cellphone signal. Simply plug the device into the USB port of the laptop and suddenly the user should see an immediate increase in the signal strength of the phone.
There must be at least one bar of signal in the first place, but this could increase by two to three bars once the device is activated.
These are the specs for the USB cellphone booster:
•USB powered device boosts your cellphone signal for improved voice and data
•2-3 bars extra signal for any cell phone or 3G data card
•More signal means better call quality for cell phones, and up to 100% faster download speeds for 3G data cards.
•Prevents dropped calls and improves call clarity
•No drivers or software needed, only uses USB for power
•Simple installation – Simply place antenna near a window (up to 15 feet away) and plug into your laptop’s USB port. The advanced circuitry does the rest.
•Compatible with every carrier in Canada and the US (Except “iDEN” phones used by Nextel, Southern LINC, and MiKE Canada) This means it does not work with Nextel.
•Intelligent microprocessor-controlled amplification
•Frequency: 869-894, 1930-1990 MHz
•Gain: 48 dB typ.
•Output Power: 10 dBm typ.
•Supply: 5 Volts DC @ 0.250 amps
•Operating Temp: -30 to +60
•Size: 5″ x 1.5″ x 0.9″
•Weight: 0.3 Lbs.
Priced at $99.99
Source [Think Geek]