More than just a mobile phone, this is mobile peace of mind. The ClarityLife® C900™ gives you the freedom to stay connected with the ones you love and know that help is available wherever you go. Finally, a cell phone designed for seniors, people with hearing, sight, and dexterity challenges and people who only want the basic cell phone functionality, including speech and security. For Speech: With amplification up to 20dB, this simple, easy to use phone has large buttons for easy dialing. You can easily place and receive calls with the large 4-button operation. The phone is a larger size which makes it easy to handle. In addition to the audible ring, there is a strong vibrating signal and a bright flashing alert. See clearly with the large backlit screen and your choice of small or large text size. You can send and receive text messages. There is a 200 phonebook memory. For Security: There is a large red SOS emergency button recessed on the back of the phone. When pressed, this button texts and calls up to five pre-programmed numbers of family or friends to connect you with someone who can help. There is a flashlight built into the phone for added security and assistance. For Service: The C900 is sold “unlocked”. This means you can take the phone to any provider on a GSM compatible network to purchase service. This will allow you to choose your own service plan. The provider will install a SIM card to activate the phone. Prepaid service is available through Clarity on the T-Mobile network. No other mobile phone has all of these speech, visual and security features. It is hearing aid compatible for those using telecoils. Battery talk time is 180 minutes with up to 150 hours of standby time. One year warranty.