clicker是什么东东？

[jiadesunyan]

busi1004老师说，
Please try to have your clickers at the first class of next week. I'll circulate a paper to get your clicker numbers
鸟语还不够好，想了半天没猜出来clicker是个什么东西、、、

 

[指着太阳说日]

一类似遥控器的东东

 

[jiadesunyan]

一类似遥控器的东东

遥控什么的？busi1004会用到这东西？？我要去哪里搞找这玩意呃。。。。