<p> The stylish, light-weight and portable Ameriphone Q90D combination TTY/VCO, by Clarity, is ideal for use in homes and offices as well as while traveling. </p><ul><ul><li>68-key PC-style keyboard with one touch buttons for typing commonly used phrases </li><li>Connects to your TSB-121 compatible cellular telephone </li><li>Text answering machine with programmable personalized greeting and remote message retrieval </li><li>Built-in microphone for hands-free Voice Carry Over (VCO) calls </li><li>Place Hearing Carry Over (HCO) calls with optional speakers or headset </li></ul></ul>