It is designed with a 1.7-inch backlit LCD display for controlling the device and is compact and lightweight, at 3.7 oz. The device also has a built-in memory card slot that supports SD and SDHC formats and comes with a 1GB SD card. The DS-3400 includes a voice-activated Variable Control Voice Actuator feature which automatically records once it hears sound to save memory and battery life. It offers conference and dictation settings as well as file editing and management, and PC Link capabilities. The recorder also has three programmable buttons for customizing the functions and has a lock feature with password protection. The DS-3400 comes with DSS player software and has a suggested retail price of $500.