About this item Adjustable bed HJH55 remote control + HJC18 receiver control box by RichmatUp to 2 lift motors + 2 vibrating massage motors can be connected. Note: The product does not include a power supply, you need to use the old power supply or purchase separately. Compatible power supply is output DC24V-29V, plug for 2-pin (round + flat) The advantage of buying the remote control and receiver box together is that you can avoid the receiver box and remote control produced at different times not working properly due to chip incompatibility Only for adjustable beds with RICHMAT logo motors, head and foot lift, vibration massage, LED lighting, USB charging port, etc. Caution Before purchasing, please check and make sure that the original bed motor is RICHMAT brand and the plug is a round metal plug containing 8 pins. Note that if it is 5 pins or 2 pins will not work properly This remote control uses 2 x AAA batteries which need to be purchased separately