タイトルまたは説明

Communication methord: 2.4GHz *-way RF
Screen: LCD screen
Up to **0 meter and up to ***0pcs
Connect : USB
**0 degree signal transmission
Input: A~Z, a~z, 0~9
English and Simple Chinese version for choice.
Acceptable software: PPT
Function: check apperance, voting, interactive response, exam, quiz
Theme: single/multiple choice, sequencing, rating scale, yes/no, numeric ,fill blank
Mostly Input: *6 characters
Software: V2.0
Buttons: *1