I purchased a Qball with grant funds but to this date have not been able to use it successfully. The initial Qball unit was defective and I had to wait for a new set to arrive. Once it arrived I have not been able to get it to syn with my speakers. It is an ongoing mission and students are excited to work with it if we can ever get it to work. Sometime we use the ball as random selection device even though we can’t get the speaker to work. Students will select who to pass off the next question .