Features:  Made of fine quality material, practical, has a long service time, you do not need to change it often.  Portable and compact, easy to operate and carry, also easy to storage.  4.0 inch TFT LCD touching screen display. let you see the data more clearly.  Measurement frequency ranges is 50KHz~3GHz, has a wide applications.  High stability, high sensitivity and high accuracy, greatly improved performance.  EVA storage bag is convenient for storage and carrying.    Specifications:  Main material: PCB+iron  Color: black  Battery: 1 * lithium battery, 3000mAh (included)  Measurement frequency range: 50KHz-3GHz  Frequency tolerance: ＜2ppm  Frequency stability: ＜0.5ppm  System dynamic ranges (calibration): 70dB (up to 1.5GHz), 60dB (up to 3GHz)  S11 noise floor (calibration): -50dB (up to 1.5GHz), -40dB (up to 3GHz)  Sweeping rate: 100 points / second  Display: 4.0 inch, 320 * 480  USB interface: Micro USB  Power supply: USB, maximum recharging current 1A  Battery connector: JST-XH 2.54mm  Maximum sweeping points (on device): 201  Maximum sweeping points (USB): 1024  Port 2 return loss (1.5GHz): 20dB typ  Port 2 return loss (3GHz): 13dB MIN  Item size: 117 * 85 * 25mm / 4.6 * 3.3 * 1.0in  Item weight: 368g / 13.0ounce  Package size: 215 * 137 * 85mm / 8.5 * 5.4 * 3.3in  Package weight: 972g / 2.1lb    Note:  VNA-QT software download: https://github.com/nanovna/NanoVNA-QT/releases    Packing List:  1 * SAA-2N Host  1 * Micro USB Data Cable  2 * 500mm N-type Male to Male RG142-PUR RF Cable  1 * N-type Male Calibration Kit-OPEN  1 * N-type Male Calibration Kit-SHORT  1 * N-type Male Calibration Kit-LOAD  1 * N-type Female to Female Connector  1 * EVA Storage Bag  1 * Touching Screen Paddle and Lanyard