The mark consists of the word SONA, stylized in all lowercase in a retro-looking font that has rounded edges. Each letter is the same size, centered and read from left to right, filling out a squared-off area. The middle of the S, middle of the A, and connection between the line of the N and its curve are all thin and narrow whereas the remainder of the letters have a bolder look.
Color is not claimed as a feature of the mark.