A standard SMS message is limited to 160 characters by cell phone carriers, and we use 20 of those characters to let people know who the message is from.
To include more information, you can attach photos and documents to your announcements. You can also send your classes multiple announcements.
You can access higher character limits with a Remind School and District Plans. If your school or district administrator is interested in learning more about these, they can see more details here.