Allassea Gold Contur II Adjustable Steel Mattress Base with Auto Reverse Safety and Wireless Remote, Twin XL (Also Available in Queen; Sync Two Wireless Twin XLs to Create a King) Independent head and foot up and down Whisper quiet, low voltage DC lift system; 880-pound lift capacity Head lift angle 70-degrees; auto reverse safety feature Wireless remote; long lasting powder coated steel frame Easily combine and sync two wireless Twin XL bed frames to form one King size bed frame! Synced units will work in tandem and are controlled through one remote (wireless version only)