IRS DDG110-450/260-H Motor Actuator for Massage Chair Backrest Ding Tang you can use this one

you can use this one to replace it

Genuine HC13-1M-0U01 remote controller

manufactured by Wuxi JDR Automation Equipment Co

Perfect fit: If the model number of your existing switch is KDH120-015

SMT10-04-120-220 (43) and SMT10-04-120-220 (43T) are 2 different models

IRS DDG110-450/260-H Motor Actuator for Massage Chair Backrest Ding Tang you can use this oneThis is the genuine DDG110 450 260 H motor actuator. This actuator is specifically designed for driving the backrest Recline Incline for several massage chairs. Compatibility: This actuator is not cross compatible, your original actuator must have the exact same model number, otherwise, this actuator will NOT replace yours. This actuator is compatible with iRest SL A80 1 massage chair. Features Drive motor for the backrest incline recline function for