Using this Langdon Leather Gel Lift Chair is a breeze. To adjust the position, just use the wired controller. Press the buttons to lift, sit, or recline. You can also turn on the massage function for some relaxation. When you want to charge your devices, plug them into the USB port on the remote. If there's a power outage, don't worry! The backup battery pack allows you to still lift and lower the chair, but remember to get 2 - 9Volt batteries (not included). Assembly is quick. Just follow the instructions, and you'll have the chair ready in minutes. For maintenance, wipe the semi - leather fabric clean with a damp cloth. Keep in mind that the chair has a Prop 65 warning due to wood dust, which can cause cancer. So, make sure to keep it in a well - ventilated area. Also, the chair can hold up to 350 pounds, so don't exceed this weight limit for safety and to keep the chair in good condition.