Optimized for small, medium and large presentation environments, the ResponseCard Radio Frequency (RF) keypad takes advantage of the latest in audience response technology advancements. The ResponseCard RF keypad provides features and functionality required to ensure that the audience response transmissions of 1000's or in large locations are accurately, timely and effortlessly transmitted to the TurningPoint, interactive PowerPoint presentation. ResponseCard RF keypads and receiver fit into a light weight, custom carry case. Compact size and light weight design ensures ease of system transportation whether it be from room to room or around the globe. At 1.0 oz in total weight, including batteries, shipping costs minimal. The result is optimized portability.