How much does this cost to the nearest dollar?

QiJack Stereo TRS Output Jack for Guitar/Bass with Mounting Hardware
The two main functions of a guitar jack are a secure connection and a low resistance connection. The traditional Jack is a 60 year old design and only has contact from one side of the brass spring on the tip. Over time the brass spring becomes weak and sloppy. The patented QiJack has two points of contact on either side of the tip of the plug and the sleeve. Instead of a bent piece of brass that pushes on the tip of the plug, the QiJack has a round ring. When the plug is inserted, the ring expands into an oval shape to push firmly on both side of the plug at the tip and the sleeve. When the plug is removed the ring returns to its round shape. The physics behind

Price is $42.00
Price: $41.99