Do you meet a situation that the line of the battery charger is not long enough in you daily life?(你在日常生活中遇到过电器线不够长的情况吗？)
Do you think whether the socket needs the USB port or not?(你认为插座上是否有必要有USB插口？)
Do you think how many holders is better in the socket inside the wall if we can use the same space?(如果在相同的面积下你认为墙上的插座有几个插口更好？)
Do your think whether the socket inside the wall needs a switch to ensure safety especially for children?(你认为在墙上的插座是否需要一个开关来确保安全尤其是儿童的安全？)
Do you want to pay 3 times of money for the common socket to buy one which has these functions and can save 6% power?(你愿意花一个普通插座三倍的钱来买一个有上述功能并能节省6%电量的插座吗？)