ResponseCard RF LCD / RF clicker devices are powered by two flat lithium batteries (CR2032).
The QT and QT2 come preinstalled with two AAA batteries.
All refurbished RFLCD Clickers supplied by Participate Technologies come pre-installed with new batteries.
The average battery life is 6 to 12 months each model.
Take care when storing your device, as it may inadvertently press a button continually, depreciating the battery more rapidly than normal.