Product Description   -2.1 Inch LCD Screen Display - Input Frequency 950~2150MHz - Input Level -65~ -25dBm - Input Impedance 75 ohm - Measurement Type: signal strength,quality;ber;pwr - Sound for Locking Signal - Support DISEQC 1.0 /1.1 and 22khz Tone - LNB Power Supply:18/13V(IMax 300mA) - Beep Integrated - 7.4V/800mAh Lion Battery Included - Max Operating Time:3 hours - 12V/1.2A DC Adapter - USB Port For Software Upgrades