It’s combined a great sound quality and multi-functional modular combination feature for users.
With Duo-channel receiver and scan mode will bring more conveniences to prompt setting up installations for indoor or outdoor activities and easy to move on when using! Incredible sonic performance and extremely power driver deliver incredible sound reproduction, loud and clear.

* GPA-820, a standard version
* GPA-828, built-in Echo and Delay function 

For more information, please contact okayo@okayo.com