MTO3B Speaker: Controls and Bluetooth Pairing Guide
Product Overview
This document provides a comprehensive overview of the MTO3B speaker's features and controls. It details the audio adjustment knobs (Bass, Treble, Volume), power switch, input/output connections, and the process for pairing the device via Bluetooth.
Controls and Connections
The rear panel of the MTO3B speaker is equipped with several controls and connectors:
- 1. BASS: A rotary knob used for adjusting low frequencies. Turning it left decreases bass, while turning it right increases bass.
- 2. TREBLE: A rotary knob for adjusting high frequencies. Turning it left reduces treble, and turning it right enhances treble.
- 3. VOLUME: A rotary knob that controls the input sensitivity. Adjust by turning left to decrease sensitivity or right to increase sensitivity.
- 4. POWER SWITCH: A toggle switch for turning the loudspeaker on or off. Ensure the volume knob is set to its minimum position before powering on the unit.
- 5. POWER INPUT: This port accepts the included power adapter (DC 12V, 2A). Connect the adapter here and then to a suitable power source.
- 6. OUTPUT: An RCA connector designated for linking a slave speaker, typically for the right audio channel.
- 7. INPUT: RCA connectors providing audio input for both the left and right channels.
- 8. PAIRED / Bluetooth Button: This button serves a dual purpose: indicating the Bluetooth pairing status and initiating the pairing sequence.
The unit also displays compliance marks, such as the [CE mark], and is manufactured in China.
Bluetooth Pairing Procedure
To establish a wireless connection with your mobile device using Bluetooth:
- Press the Bluetooth button until the indicator light begins to blink, signaling it's in pairing mode.
- On your mobile device, navigate to the Bluetooth settings.
- Scan for available devices and select "MTO3B" from the list of detected devices.
- Follow the on-screen prompts to complete the pairing process.
Once successfully paired, the Bluetooth indicator light will turn solid blue. You can now stream audio from your mobile device. To disconnect or turn off the Bluetooth feature, press the Bluetooth button again.


