rechargeable
Functional sofa refers to multi-functional sofa. The most common is the functional sofa: divided into two kinds, one is: manual function extension, manual can also be matched with shaking and rotating functional sofa, there is another: electric function extension, electric can also be with shaking and rotating these two functions, the use of built-in lithium power supply can solve the problem of alloy frame in shaking or rotating when pulled to the power cord. Therefore, when you want to buy this kind of sofa with shaking and rotating function, pay attention to ask customer service. Understand the applicable precautions. One is the sofa bed: this kind of sofa can be used as a bed or a sofa, when the general sofa is not stretched out, it can be used as a bed when it is opened, which is very convenient and saves place, and is very suitable for small household.