Description: Transmitters and receivers are used in pairs and can be used in one-to-many or in multiple pairs. Compatible with VCD, DVD, computer remote control, satellite set-top box, digital TV set-top box, network high-definition player and other remote control signals. Using excellent raw materials, the power consumption is lower. The product comes with a powerful infrared remote control, which can be combined with an infrared remote control extension cable. Full hardware design, no need to install software, to plug and to play, simple and convenient. Specification: Carrier frequency: Broadband (20KHz-60KHz) Power consumption: 0.5W Material: Plastic Size: 90 x 60 mm / 3.54 x2.36 inch Transmitters Cable Length: 3 Meters / 9.84 Ft Receiver Cable Length: 1.5 Meters / 4.92 Ft Infrared remote control receiver: host box, receiver, transmitter, DC 12V power supply. After receiving the remote controller instruction, the receiver converts the signal to an infrared signal, which is used to control household appliances, such as air conditioners, televisions, stereos speaker, and other infrared remote control devices, so as to achieve the purpose of remote control. Package Includes: 1 Piece Host Machine 3 Pieces 3.5mm Male to 2 Transmitters Cable 1 Piece 3.5mm Male to Receiver Cable 1 Piece AU Plug Power Supply Power Plug: AU Standard This power plug often used in countries below: Australia Notes: if your country is out of the country list above, please make sure you need this product before your purchase. Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor.