Build a switch circuit that responds to sharp sounds like clapping your hands, etc. * Kit contains all components including circuit board * 3A changeover relay output * Circuit counts two claps before operating to avoid false triggers * Operates from 6 to 20V * Component count 36 * Circuit board dimensions: 55 x 50mm Suitable for Key Stages 2, 3 & 4 (ages 7 to 16) Teachers notes are available to download at our Education Resources site. https://elecena.pl/product/27206561/rapid-clap-switch-project-kit 2024-11-10 https://elecena.pl/product/27206561/rapid-clap-switch-project-kit 2025-09-13