4K wireless screen-sharing device. Overall upgrade of quality and intelligence, wireless screen-sharing, intelligent life. All kinds of scenes can be used, you can watch them anytime and anywhere, and the big screen is carefree and efficient. What do you mean by horizontal and vertical screen switching? Watch drama in horizontal screen, watch short video and live broadcast in vertical screen, and switch between horizontal and vertical screens with one key to meet various usage scenarios. Plug and play, easy to use. 5G+2.4G dual-frequency transmission chip, enhanced signal transmission module, stable transmission without delay.<br><br>Name:wireless screen projector Resolution:4K/30Hz Video interface: WiFi mode:2.4G+5G Color:Black Material:ABS+PC<br><br>Package Contents: 1 * 4K HD wireless screen sharing device CJ62 (5G dual-band + external antenna)<br><br>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.