Boss Audio Systems TUBE User Manual

Charging and Battery

Charge the speaker until the LED indicator light turns off. A prompt sound will indicate when the battery is low. The unit will automatically shut down when the voltage drops below 3.3V. While charging, the red LED light remains on and turns off when the device is fully charged.

Spanish: Cuando la altavoz tiene la batería baja, sonará.

English Translation: When the speaker has low battery, it will sound.

Powering On/Off and Illumination

Press the [power button] to power on the speaker. Short press the [power button] twice to turn the blue illumination on or off.

Bluetooth Pairing and Connection

For first-time use, the Bluetooth indicator flashes blue quickly, indicating the speaker is in pairing mode. When powering on the speaker after Bluetooth setup, it will search for the previously paired device, and the Bluetooth indicator will flash slowly. If no paired device is found, it will flash quickly, and the speaker will enter pairing mode.

To save power, the speaker turns off automatically after 15 minutes of inactivity.

You can reset the speaker by pressing the [power button] and [mode button] simultaneously.

Pairing Steps:

1. Ensure the speaker is in pairing mode.
2. Enable Bluetooth on your device. Select 'Boss Audio Systems Tube' from the available devices. Enter the password '0000' if necessary to start pairing and connection.
3. After successful connection, the Bluetooth indicator turns solid blue, and you will hear a voice prompt "connected".

This speaker supports automatic connection with a previously paired device after power-off and power-on.

Mode Selection and Features

Press the [mode button] to cycle through available modes: SD, Bluetooth, and FM.

Press the [mode button] twice to switch between English and Spanish voice prompts. The current language setting is memorized when the speaker is turned off.

Long press the [play/pause button] to disconnect a paired Bluetooth device.

FM Radio Operation

To adjust volume, long press the [volume +/- buttons]. To skip to the previous or next channel, short press the [volume +/- buttons]. Short press the [play/pause button] to mute the audio.

To perform an auto-scan for radio stations, press and hold the [mode button]. The TUBE will enter auto-scan mode and store all radio stations with a strong enough signal. Once the scan is complete, the TUBE will stop on the first stored station. Note: Manual scanning of stations is not supported. Perform Auto-scan again to maintain strong stations and overwrite existing presets.

Spanish: Presiona en largo tiempo +/- para ajustar el volumen. Presiona en corto tiempo +/- para pasar a la canción anterior o la siguiente. Presiona corta para pausar.

English Translation: Long press +/- to adjust volume. Short press +/- to skip to the previous or next song. Short press to pause.

True Wireless Stereo (TWS)

You can connect two Boss Audio Systems TUBE speakers to each other to enrich your listening experience.

1. Hold the [mode button] on one speaker for 3 seconds to set up the True Wireless connection (this becomes the main speaker). Ensure the other speaker (to be purchased separately) is not connected to any Bluetooth device.
2. The two speakers will pair with each other automatically after 15 to 30 seconds.
3. Once paired, the True Wireless connection will reconnect automatically when both speakers are turned on again.

Tips: After a successful connection, you can use the [mode button], [volume +/- buttons] on either speaker to control both speakers simultaneously. You can hold the [mode button] on either speaker for 3 seconds to disconnect the True Wireless connection. You can only pair and connect your mobile device with the main speaker.

Spanish TWS: Puede conectar dos altavoces Boss Audio Systems TUBE entre sí para enriquecer su experiencia auditiva.

English Translation: You can connect two Boss Audio Systems TUBE speakers to each other to enrich your listening experience.