transformers face an array of issues that demand operating efficiency.some transformers have two or three modes of transformationfor example:first mode / studying, reading, writing,second mode / comfortable sitting for relaxation and contemplationthird mode / informal conferencing …

 

the main categories of these transformers are- transformers you can use in two (or more) different ways without changing mode;- transformers that change modes (the chair turns into…);- accessories are attached to the chair (linked);- accessories in use only for one mode, can be taken apart (not linked).