Here's a short description of the TV Box remote control buttons:

• TV Box power button: puts the TV Box in active standby / leave standby
• TV power button: powers on/off the TV (via Infrared)
• TV source button: cycles through the TV HDMI sources (via infrared)
• Google Assistant microphone: press to open Google Assistant and ask your question (bluetooth connectivity required)
• OK button
• Direction pad: navigate up, down, left and right
• HOME (Orange) button
• BACK button
• Exit button
• Volume control buttons (Up/Down, via infrared) - long press on (Vol-) to Mute
• Channel up/down buttons
• Numeric keys
• OPTION button to open contextual options menu
• Trickplay buttons (REWIND, PLAY/PAUSE, FFWD)
• REC button to start a recording on the selected event