1. 4K High-Definition Wireless Screen Sharing Device, Enjoy Large High-Definition Screen, 4K/30HZ Wireless High-Definition Screen Sharing 2. Plug And Play, No Wifi, No Bluetooth, No App Required, Wireless Same Screen 3. Plug The Receiving End (RX) Into The Display Device (Such As A TV), And Plug In The Type-C/USB Power Supply Cable To Power The Device. 4. Plug The Transmitter (TX) Into The Output Device (Such As A Computer, ETC.), And Plug In The Type-C/Usb Power Supply Cable To Power The Device. 5. 4K BLU-Ray Quality Wireless Hdmi Audio Transmission Extender 1. Output Resolution: 4K 2. Audio Playback Formats: MP3, WMA, WAV, OGG, FLAC, DTS, AAC, AC3, APE 3. Interface: HDMI 4. Function: Wireless, Wifi, Games, Education, High-Definition Display, Screen Projection 5. Supported Video Formats: ASF, AVI, VOB, MPEG, DAT, RM, RMVB, WMV, FLV, MP4, SWF, TP, ISO, TRP, MKV Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use. Colour:As Shown Material:ABS Package Contents: 1 * Transmitter 1 * Receiver 1 * Instructions In Chinese And English 2 * Data Cable 1 * Hd Extension Cable 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.