1. a pair as a complete functional module, without setting. 2. CAT-5e/6 cable can replace the HDMI cable to achieve long-distance transmission. 3. Follow the IEEE-568B standard. 4. The transmission distance can be up to 30 Meters per 1080p via CAT-6 cable. 5. Compact size; Signal rater up to 1.65 Gbps in support of 1080p display. Gender: Male-Female Application: Multimedia;Monitor;DVD Player;Projector;Television;TV BOX Feature: HDMI1.4 Type: 4K HDMI Extender Size: 6cm x 2.5cm x 2cm Color: blue Material: plastic, metal The network cable needs to use a super six network cable (pure copper and single strand), can not use multiple strands, five network cables are not available, TX is the transmitting end, RX is the receiving end, if HDMI cable is used, it must be a positive mark 19+1; The resolution needs to be adjusted in the display settings. The network cable can reach 4K within 10m (Note: the network cable is all copper, single strand) Package Contents: 2 * Transmitter 2 * Receiver