Screen ratio, you can choose different screen ratios according to different user needs. In scenes, full screen mode has a better visual experience. Rear facing selfie, high pixel count, high image quality, multiple length switches, recording the most beautiful moments. The live streaming screen is clearer, making full use of multiple cameras, and you can also see comments in the comment section, which is simply a live streaming artifact. Monitor the viewfinder and use a more professional and reasonable viewing angle to capture more outstanding videos. Rotate/mirror, click the rotate button to rotate the screen 90 degrees, long press the rotate button to mirror the current image, making selfies more comfortable Wireless mode: WIFI Power input: 5V=0.5A Rated power: 1.75W Battery capacity: 3.7V1300mAh Charging port: USB-C(Type-C) Battery life: 3 hours Screen size: 3.97 inches Resolution: 480x800 pixels Perspective: Full View Brightness: adjustable 400cd/m2 (Max) Transmission distance: up to 30 meters in open environments Voice: Supported Size: 112 x 68 x 12mm Working temperature: 10-+40 Colour:As Shown Material:Aluminum Alloy Due to different product batches, the appearance , which does not affect the use Package Contents: 1 * Viewfinder 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.