S11 (typical value):- 20dB Frequency range (MHz):10-2700MHz Model:-127 Unevenness in band:ldB (after calibration) (kHz):3,5,10,20,30,50,100,200,300,500kHz DANL (average bottom noise):- 110dBm (typical value) Amplitude accuracy:+-0.5dBm Scanning time:200ms function:support Adjustable reference level:supported Display refresh rate:5Hz (refresh 5 screens per second) LCD resolution:TFT 800X 480 RF interface:SMA-K Chromatogram:support Thermal diagram:support Built in clock:Supported Battery capacity:3300mAh (typical) Battery type:18650 lithium battery Charging time:4-5 hours Charging interface:-USB interface Battery life:9 hours Operating temperature:- 20-45 Storage temperature:- 20-70 Signal measurement range:- 100-- 10dBm ( signal plus attenuator) Different batches may result in differences in product appearance and color, which does not affect usage Colour:White Material:plastic Size:LCD size:5 inches,Boundary dimension:135mmx101mmx30mm (excluding knob and antenna height) Package Contents: 1 * DIY Spectrum Analyzer Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.