The SPT 1550 comes with a generous 8 MB of RAM and 4 MB of ROM, for application or data storage needs, and its 33 MHz processor allows applications to run at peak speeds, keeping pace with business demands. With its touch-based graphical interface, push-button controls, and backlit 160 x 160-pixel display, the SPT 1550 is easy to use, even outdoors or in dimly lit spaces. Two AAA batteries deliver hours of power, or an optional rechargeable NiMH battery kit is available. The SPT 1550 supports both single and multi-slot cradles for flexible host communications in most network and user environments.