Check the listing for details. Electric Assisted Wake-up Device Electric Lifting Mattress Bed Backrest. Color: Green, Condition: New. Listed at 191.03 USD. Specifications Color: Green Material: Carbon Steel, Sponge, Fibre Cotton, Imitation Cotton and Linen Process: Electrostatic Spray Moulding Style: Modern Assembly Required: Yes Mounting Type: On the Bed Power Source: Corded Electric Plug Type: US Standard Control Type: Wired Remote Control (Included) Remote Control Cable Length: About 1.8-2.5m/5.91-8.2ft Power Cord Length: 2.5m/8.2ft Motor Thrust: 1500N Load Capacity: 300kg/661.39lbs Adjustable Angle: 2-80° Input Voltage: 100-240V Output Voltage: 29VDC Working Power: About 50W Input Current: 1.5A Output Current: 1.8A Input Frequency: 50/60HZ Total Product Size: 120*75*12~73cm/47.24*29.53*4.72-28.74in(4.72in When the Backrest is Lowered to the Lowest; 28.74in When the Backrest is Raised to the Highest) Backrest Length(A.