Description:1. Low power consumption, novel appearance, simple connection, strong signal and stability, remote control receiving distance, strong anti-interference ability, no need to install, plug and play.2. Suitable for the TV set-top box hidden behind the cabinet or TV, and use the infrared transponder instead of the set-top box to receive the infrared remote control signal.3. Widely used in set-top boxes, speakers, LED light bar controllers, driving recorders, digital photo frames, household appliances, and other various products to assist in extending remote control reception. How to use: Insert the USB interface to the set-top box. If there is no USB interface, add a 5V power adapter, the small head is the transmitting part, and put it within 10cm of the remote control receiving window.
eBay