The Pololu USB to serial adapter is great for connecting microcontroller designs to a personal computer. The adapter uses 3.3 V signal levels so you can connect it directly to any microcontroller running at up to 5 V without the hassle of an RS-232 to TTL level converter.
20W Megaphone with Compact and lightweight Built-in Microphone, ideal for carrying with you for demonstrations, marches and any other occasion you may understand!
