Added functions after update: 1. Ergonomic design, fully upgraded appearance 2. The measurement range is upgraded to 50KHz-2.7GHz, and the number of scanning points is increased to 401 points 3. Support SD card to save and export data; 4. With resistive touch screen function, and upgraded large knob operation, the operation is more convenient 5. Large capacity built-in 5000mAh battery for longer battery life. 6. 4-inch IPS LCD display, IPS has wide viewing angle, accurate color reproduction, high contrast and uniform brightness Bandwidth: 50KHz-2.7GHz Dynamic range: 80dB (50KHz-900MHz) 60dB (900MHz-1.5GHz) 50dB (1.5GHz-2.7GHz) Reflection coefficient: SWR: Less than 1.1 Frequency accuracy: Less than 0.5 ppm Frequency stability: Less than 2.5 ppm Number of scanning points: 401 Color: Black Material: plastic Package Contents: 1x USB type-c cable 2x 15 cm SMA male to male TG316 cables 1x SMA male calibration kit OPEN 1x SMA male calibration kit short 1x SMA male calibration kit LOAD 1x SMA female to female connector 1x Type-c to Type-c cable 1x stylus pen 1x pick 1x -H4 PLUS host 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.