XP WS4 Audio Output Kit
XP DEUS WS4 Wireless Headphone Adapter
Convenient jack output adpter attaches to the back of the WS4 headphone LCD earcup. Allows the use of an alternative headphone of your choice. Built in audio jack output (3.5mm, 1/8). Use the WS4 in your pocket or in a waterproof armband. See the target ID on the LCD. The WS4 can be used as a small but very efficient remote to adjust the most important settings.