iClicker 2, in mint condition. The serial number on the remote just needs to be re-registered with the iClicker site. # Reference: - https://old.reddit.com/r/McMaster/comments/ct3ojg/should_i_buy_a_second_hand_iclicker/ - https://old.reddit.com/r/Concordia/comments/xa5e9p/can_i_buy_a_second_handused_iclicker_for_my_class/ - https://lmsreg.iclicker.com/Register_Clicker.aspx