I think you can compare it with voting shares
What Does Voting Shares Mean?
Shares that give the stockholder the right to vote on matters of corporate policy making as well as who will compose the members of the board of directors
http://www.investopedia.com/terms/v/votingshares.asp
A voting share (also called common stock or an ordinary share) is a share of stock giving the stockholder the right to vote on matters of corporate policy and the composition of the members of the board of directors.
http://en.wikipedia.org/wiki/Voting_share
Non-voting stock is stock that provides the shareholder very little or no vote on corporate matters, such as election of the board of directors or mergers. This type of share is usually implemented for individuals who want to invest in the company’s profitability and success at the expense of voting rights in the direction of the company. Preferred stock typically has nonvoting qualities.
http://en.wikipedia.org/wiki/Non-voting_stock