1) 3.5" TFT LCD tester 2) Audio test function 3) Resolution 640* ... for camera Specifications:1) Portable tester with3.5 inch TFT display(video input and out put)2) Auto identity ... of the camera effects, the lens range, the lens view angle, etc. adjust positioning, saves time and effort, ... Maximum charge voltage: 4.25V Model BT-B800 LCD screen 3.5 inch TFT LCD Input voltage 5V, 2A (±10%) Video signal ...