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. Battery: 1 x lithium battery, 3000mAh (included) Measurement frequency range: 50KHz-3GHz Frequency tolerance: Less than 2ppm Frequency stability: Less than 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 x 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 Note: Please contact customer service about download or installation information before placing order. Colour:Photo Color Material:PCB+Iron Package Contents: 1 x Host 1 x USB Data Cable 2 x Cables 14 x N-Type Male Calibration Kit 1 x N-Type Female to Female Connector 1 x EVA Storage Bag 1 x Touch Screen Paddle and Lanyard 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.