1,Is widely used in home alarm , panic, buttons, garage door, rolling curtain, etc. 2,Delicate and nice appearance, 4 control button 3,Adopt the radio frequency technology, long transmitting distance,high transmitting sensitivity, no signal obstruct 4,Can be copied to the chip: 2260 (all manufacturers), 2262 (all manufacturers), PT2264, 5326 (all manufacturers), SC5262, HT600, HT680, HT6207, HT6010, HT6012, HT6014, SMC918 series, 527 (all manufacturers), 1527 (all manufacturers), 2240 (all manufactu 5,Clearing method: Press and hold the two keys of unlocking and closing at the same time (some shells are up and down keys), the LED indicator flashes three times, release any button pressed, the other is not loose, click the button to release Three time Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.