AT&T® 210-BLK Trimline® Corded Telephone, BlackReliable, corded operation eliminates the search for a misplaced cordless handset, while sturdy construction ensures long lasting performance. Clean design makes it an easy fit on any counter or wall. No need to plug into an AC Power outlet. Telephone features will work without the need for AC Power. Operate the phone even in low light conditions with the help of backlit buttons. 3 buttons for one touch dialing of emergency or frequently called