QINTAIX I57B Mini Wireless Keyboard 2.4G air mouse remote with IR Learning function for Android TV Box/PC/Smart TV/Projector/HTPC/All-in-one PC/TV

Specifications Wireless modulation mode: FGSK Modulation frequency: 2.4-2.4835GHZ Working temperature: - 20 C ~65 C Battery type: 300mah, 3.7V lithium battery Overall power consumption: less than 9mA Support system: Window / Android / Mac OS / Linux IR Iearning Function: When the remote control is not connected to the USB dongle, the front button is the infrared function (except the mouse button),when connected with the USB Dongle 2.4G function:{power} key always in infrared function. a: Press and hold the "ok"button and "power" button at the same time , the indicator light become slightly light after 3 seconds the indicator light become more bright ; b: Press the remote control to learn the infrared function button , the indicator light flashing; c: Use the transmitting tube of learning remote control alignment the transmitting tube of learning which keep 1cm distance proceed to learning operation, after succeed learning then indicator light flash 3 times become normally on .repeat the step of b-c could learning multiple key successively . d: Press the (cursor lock) button to exit the learning mode and save learning date. Notice :This product use built - in lithium battery, charging input voltage of 5V If the remote control is nout used for a long time or when the battery is low, please use it when it is fully charged . Use the specified USB cable to charge the remote control, overcharge the battery will shorten the battery life . Avoid use in hot or cold environments, which will shorten battery life.