Massachusetts-based electronics manufacturer Kopin released this week a line of glasses that use augmented reality to help athletes improve performance. Solos smart glasses will link up with smartphones to inform athletes about their performance measurements and will give feedback and live directions.

The glasses are also able to receive voice commands and includes integrated music and other audio connectivity. Groups can also communicate with each other with Solos, and make phone calls without having to hold their smartphones. The glasses are currently retailing for $500.