Slinger Bag (review)

This is a high-tech portable tennis ball launcher. Now you don’t even need a live opponent to practice with! The bag is that it can hurl balls in your direction at speeds ranging up to around 40 miles per hour. You control the speed and the gizmo can be set to launch shots at a variety of angles and elevation modes.

Full review: https://gadgetsandwearables.com/2020/06/10/slinger-bag-review/
US distributor: https://slingerbag.com
UK distributor: https://slingerbaguk.frameworksports.com/?ref=maslakovic