Comply with U.S safety certified ---This IR-repeater have been approved by FCC, CE and RoHS,don't need to worry about accidents. For all kinds of location ---Suitable for home, hotel and bar! With 20-60KHz frequency to the remote controller and long range 700 feet between the receiver and the emitter , you can remotely control your DVD and speaker with this product to enhance your product experience! New champion! ---Creative design takes up close to ZERO storage space. Quality Control ---The material and whole manufacturing process are meet with the industry requirements, which is with feature of high- temperature resistance and fire resistance, as well as high strength and toughness. Specification: 1 x Wireless IR Receiver 1 x Wireless IR Emitter 1 x IR Receiver Extension Cable 1 x IR Emitter Extension Cable 2 x AC power adapters 2 x USB Power Cables 1 x User Manual 2 x 3M Adhesive Note: Please refer the user manual carefully for installation. If you have any questions, please email to our customer service in time, we will reply to you within 24 hours!