-When the back rises, it prevents body slipping and maintaining a comfortable posture -Minimum bed height: 25 cm, reducing the risk of falling out from the bed -Lowest bed indicator light: When set to the lowest bed position, the indicator light will be turned off . Caregiver can confirm the height of the bed and reduce the risk of falling when falling -Comply with world safety standards, comply with IEC60601-2-52 standard guardrail clearance size -Memory function: can display the angle and height, and can memorize 2 common angles or heights, comfortable lying position, height for getting out of bed, etc., all can be adjusted with one button