Fangrui Product Details Display: Size 4.3 Inches 480x272 Pix Brightness: 500cd/m2 High Brightness, Outdoor Use Lens: Field Of View: 0/120 Degrees (horizontal/vertical) Magnification: 2.8x Distortion: No Distortion Transparency Power Consumption: 1.8 W Rx: Built-in 48ch 5.8g Hz A/v Automatic Search Receiver Antenna: Amplified Circle Combined With The Performance Of Rx, Gain 3db Battery: 3.7v/2.2wh Rechargeable Lithium Battery 48 Channels Are As Follows: Band A: 5645, 5665, 5685, 5705, 5885, 5905, 5925, 5945 Band B: 5740, 5760, 5780, 5800, 5820, 5840, 5860, 5880 Band C: 5725, 5745, 5765, 5785, 5805, 5825, 5845, 5865 Band D: 5733, 5752, 5771, 5790, 5809, 5828, 5847, 5866 Band E: 5658, 5695, 5732, 5769, 5806, 5843, 5880, 5917 Band F: 5362, 5399, 5436, 5473, 5510, 5547, 5584, 5621 Operating Temperature: -1050storage Temperature: -2060due To Different Batches, There May Be There May Be Differences In Product Appearance, Color, And Printed Text, Which Not Affect The Use. Colour:black Material:plastic + Glass Pack Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.