Product Description Specification:2.1 Inch LCD Screen DisplayInput Frequency 950~2150MHzInput Level -65~ -25dBmInput Impedance 75 ohmMeasurement Type : Signal Strength, Quality, PowerSound for Locking SignalSupport DISEQC 1.0 /1.1 and 22khz ToneLNB Power Supply : 18/13V(IMax 300mA)Beep Integrated7.4V/800mAh Lion Battery IncludedMax Operating Time : 3 hours12V/1.2A DC Adapter Rear Flashlight FunctionUSB Port For Software Upgrades   Package Includes:1 x Satlink ws-6933 satellite finder1 x Silicone Case1 x USB Cable1 x Power Adapter