Motion Essentials Adjustable Foundation Bed Frame Size: Queen Simple four-button wired Remote allows you to raise and lower the head and foot of the mattress. Smooth Power Lifting System features head and foot motors that gradually increase in power when articulated, providing the user with seamless transition from position to position. High Performance Lifting Capacity of up to 650 pounds for each base, including the mattress. See product manual for more details. Zero Clearance Design allows the Foundation to easily fit into platform frames (with or without legs) and sleigh beds. Emergency Built-In Batteries will return the base to flat position in case of power outage.