What is the fine-grained topic of the following text: Representatives from both companies emphasized the projector as a way to boost display performance for the Smart Boards: "Epson's PowerLite 680 for Smart was designed specifically for use with Smart Board M680 and 880 interactive whiteboards to deliver educators and students with immersive collaborative experiences utilizing the display's superior brightness," explained Veronika Knight, product manager for projectors at Epson America, in a statement. Only return the topic.
Epson's PowerLite 680 projector for Smart Board M680 and 880 interactive whiteboards