This is the genuine KDH249D switch. If your current switch has the same model number, this product will replace yours perfectly. The switch has 5 buttons and operates the up/down of the chair, the switch is suitable for 2 motor/linear actuator recliners/lift chairs. The remote control comes with a USB charging port and a Type C charging port. It provides a 5V 2A output that you can use to charge your mobile devices. This feature makes it convenient for you to charge your devices without having to search for an available electrical outlet. The switch has a small ON/OFF button for the USB & Type C charging port, if you are using a battery pack, turning off the charging ports may help save power. Package includes: 1* switch 1* plastic cover Note: The plastic cover of the switch is difficult to remove once it is locked. To facilitate your installation, the cover will be separated from the switch when shipping. When you are installing the switch, do not install the plastic cover until everything is done. After installing this switch to your chair, please operate the chair to the highest and lowest position a couple of times, so that the switch can identify the stroke of the motor. Avoid quick operation of the buttons: When responding to the switching operation, the current is relatively large, and quick operation is more likely to cause damage to the switch.