It is a 2.5" LCD monitor PAL/NTSC are both available in this machine. It adopts LED as the back lamp low consumption low interference adopt the IC to realize power management and with the feature of stabling the current of back lamp. Parameter: Sign of system: PAL/NTSC Resolution: 480 x 234; View angle: (up / down / left / right): (10/30/40/40); Brightness: 200dc / Video input: 1.0Vp-p 75ohm; Power input: DC 5V; Rating power consumption: 1.2W; Battery: 3.7V 1000mAh (Nokia N73 is available); Working temperature: 0'C~60'C; Store temperature: -30'C~60'C; Environment relative humidity: 5~95% RH; Externality dimension: (L) 85 x (H) 64 x (P) 21mm