Radio Frequency (RF) keypad is optimized for small, medium and large presentation environments. Taking advantage of the latest technology advancements, the RF keypad provides features and functionality required to ensure audience response transmissions are accurate, timely and effortlessly transmitted to the presenter’s receiver. ResponseCard RF keypads and receiver fit into a light weight, custom carry case. Compact size and light weight design ensure ease of system transportation - whether from room to room or around the globe. At 1.0 oz in total weight, including batteries, shipping costs are sure to be minimized. The result is optimized portability.