Coolbiz HDMI 1080P Wireless TV Wifi Display Dongle Adapter High-Speed and Portable All-Share Cast Hub Share Videos Potos Docs Fits Smartphone Laptop TV LX Support multi-screen interactive features like DLNA/Miracast/Airpaly. Low power consumption, low heat, and support charging via TV USB port or USB power adapter. External WiFi antenna for stronger signal transmission. Full HD output via HDMI port. Mini, small-size, lightweight, convenient for travel.