1. 500M of control distance 2. 4 Control Mode 3. Easy use for Light,Motor,Fan,Gate,Door,Lock, Window, ... Off; Press other button -> Off.Setting control mode Momentary: Only connect Jumper-1.Control mode Momentary (Channel 1~4): Press and hold ... and Jumper-2.Control mode Momentary (Channel 1, 2): Press and hold -> On; Release -> Off.Control mode Toggle (Channel 3, 4): Press -> On ...