SPJ+ Joystick for Invacare Power Chairs. 
Invacare SKU: Q76-8391 
Invacare: 1127291 
MSRP: $684.99

Description:
Model SPJ+ joystick controller for several different models of Invacare power chairs. The Dynamic SPJ+ is externally very similar to the Dynamic Shark joystick remote, however they are not the same, nor are they interchangeable. Please check the compatibility tab for a full list of all compatible models. This is a genuine Dynamic Controls joystick controller. However, please note that it may arrive without the Invacare logo printed on the keypad. Does not include the joystick bus cable.