A:AnswerYes, you can purchase the Replacement Remote model NS-RCFNA-21 available at Best Buy; meanwhile you can download the Amazon Fire TV app on your Smartphone to control your TV over Wi-Fi.
A:AnswerTo open the back of the Voice Remote, turn it over and remove the battery cover by pressing down the clip at the top of the battery cover and pull. Also, you can download the Amazon Fire TV app on your Smartphone to control your TV over WiFi.