I didn't get it, because the power socket was white.

我并没有听明白，因为，那电源插座是白色的。

This television must be used in earthed power socket.

这台电视必须用接地的插座。

Use the aC power supply to charge from a power socket.

使用交流电源充电，从一电源插座。

And more, this is not standard power socket as no certification.

同时，这不是标准插座无认证。

And, yes, they could even plug themselves into a power socket to recharge their own batteries.

而且，它们居然能够将自己放入电源插座内，进行充电。