- RESET: Press the button if the speaker does not respond.
- DC 5V: Connect the micro USB cable to charge the device.
- LED charge status indicator: With the cable connected; On-charging and Off-charged
- AUX: Use the standard 3.5 audio cable to connect external audio sources.
- LED Bluetooth indicator: The LED indicates the status of the speaker. Constant-connected, Blinking-searching and Off-Off
- power_settings_new: On and off the button for the device.
- remove: Previous song and decrease volume button.
- add: Next song and increase volume button.
- TWS (True wireless): Press the TWS button to pair two TUBE speakers for stereo playback.
- play_arrow: Press to start or pause playback
- mic: Internal microphone, activated when you are in hands-free mode, during a phone call.