Upgrade your entertainment with premium surround sound. onn. Roku Wireless Surround Speakers are the easy way to add surround sound to your onn. Roku Smart Soundbar. Two speakers work in harmony to create a rich soundscape with room-filling audio and crystal-clear dialogue. Bring your music to life with vibrant harmonies and crisp volume without distortion. onn. Roku Wireless Surround Speakers work with your current Roku remote and wirelessly pair to your Smart Soundbar in a few quick steps.