... Description Wireless Remote control Duplicator With Blank KeyDescription :Coding Mode : Fixed code Frequency : Fixed or adjustable (customized 315MHz,330MHz,443.92MHz etc ... most of rf fixed code remote ,such as garage door remote ,sliding gate remote ,automatic door remote ,home alarm and so ... ,SMC918-3SMC918-4, HT680 etc .2.Self-learning remote control3. Learining face to face in seconds4. Battery ...