Four-channel wireless remote duplicator with a four-button design. It supports multiple working modes, with a transmission distance of 98.4-328.1 ft and low interference. Suitable for use with cars, roofs, garages, gates, alarms, heating systems, home automation, and more. Memory reset method (to erase all memory) - Press the release button and the lock button at the same time (note: on some models these two buttons may be located below each other). - When the LED indicator flashes three times, release any button while continuing to hold the second button, then press the release button three times. - The device will enter a quick flashing state. All memory data will be erased; during this process, the cleaning remote control will not light the LED. Easy to carry and built to last - Professional keychain design with a metal buckle for easy hanging and carrying. - Exquisite workmanship and elegant appearance. - Manufactured to original production specifications and in line with strict quality standards. Premium quality and cloning capability - Advanced IC programming procedures to avoid accidental deletion of codes. - Clone up to 2 remote signals from 2 remote controls. - 433 MHz remote clone with fixed frequency for copying 99.99% of commonly used learning and fixed-code remotes. 2-3 practical use scenarios - Share access within a family: duplicate remotes for car, garage, and gate operators to give convenient access to family members. - Set up and manage home automation or security systems by duplicating necessary remotes for centralized control. - Prepare a spare or backup remote for travel or emergencies by cloning from an existing one.