Models play virtual tennis on the Spark S1, a smart health care system developed by Happy Sketch, at its launch event in Gangnam, southern Seoul, Wednesday. Happy Sketch developed an all-in-one screen module where users can play different sports with characters from the animation “Puka.”
YONHAP
![Models play virtual tennis on the Spark S1, a smart health care system developed by Happy Sketch, at its launch event in Gangnam, southern Seoul, Wednesday. Happy Sketch developed an all-in-one screen module where users can play different sports with characters from the animation “Puka.” [YONHAP]](https://image.koreajoongangdaily.com/10639311.webp?imageId=10639311&width=960&height=742&format=jpg)
