GoPro is facing class action suits from shareholders who feel misled by the action-camera company's claims about the demand and the sales potential for its new Karma drones. Three law firms announced the legal action after GoPro recalled about 2,500 drones on Nov. 8 after discovering that they can lose power during operation in a “very small” number of cases. No related injuries or property damage have been reported, GoPro added. The drones carried a unit price of $799. GoPro said it would refund the purchases to the customers who bought them after they were released on Oct. 23. No new drones will be sold until the issue is resolved.