1、With a 8-inch touch screen, 400mAh battery, can be used offline for 2 hours 2、TX/RX mode measurement, can measure complete S11 and S21 parameters 3、Product design is fine, it has high accuracy 4、This is a LCD display antenna analyzer with stable performance. 5、The LCD display can provide clear reading for you. Features: 1. With a 2.8-inch touch screen, 400mAh battery, can be used offline for 2 hours 2. TX/RX mode measurement, can measure complete S11 and S21 parameters 3. Product design is fine, it has high accuracy 4. This is a LCD display antenna analyzer with stable performance. 5. The LCD display can provide clear reading for you.   Specification: Condition: 100% Brand new Item Type: Antenna Analyzer Printed Circuit Board Size : Approx. 54 x 85.5 x 11mm / 2.1 x 3.4 x 0.4in(without connectors, switches) Measurement Frequency: 50KHz-300MHz (50KHz -900MHz, enable extended firmware) RF Output: -13dbm (maximum -9dbm) Frequency Accuracy: < 0.5ppm Measurement Range: 70dB (50kHz-300 MHz), (50dB (300M-600MHz), 40dB (600M-900MHz) enable extended firmware) Port SWR: < 1.1 Display: 2.8 inch TFT (320 x240) USB Interface: USB Type-C Communication Mode: CDC (serial) Power: USB 5V 120mA, built-in 400mAh battery, maximum charging current: 0.8A Number of Calibration Points: 101 (fixed) Number of Scanning Points: 101 (fixed) Display Tracking: 4, Marking: 4, Setting Save: 5 Size: Approx. 10 x 5.4 x 1.6cm / 3.9 x 2.1 x 0.6in   Package List: 1 x Analyzer 1 x USB Cable 2 x Connecting Cables