1. Introduction
Thank you for choosing the M-VAVE Lost Tempo Drum Machine & Looper Pedal. This versatile guitar effect pedal combines a drum machine with 30 preset patterns, a looper with up to 11 minutes of recording time, and a high-precision tuner, all in one compact unit. This manual will guide you through the setup, operation, and maintenance of your new device, helping you unleash your creativity.

Ignite Your Creativity with M-VAVE Drum Machine Looper with Tuner
2. Key Features
- Four Modes: Seamlessly switch between Tuner, Drum Machine, Looper, and a combined Drum Machine & Looper Mixed Mode.
- Independent Volume Control: Adjust the volume of the drum machine and looper separately for perfect mixing.
- Preset Drum Patterns: Built-in 30 preset drum patterns to inspire your rhythm.
- App Customization & Sharing: Supports app-based customization, editing, and saving of drum patterns. Share drum codes with other users.
- Loop Storage: Four dedicated loop song storage locations with a total recording capacity of 11 minutes. Each location supports up to 5 minutes of recording and unlimited overlapping tracks.
- Intuitive Display: LED indicators and a digital display provide clear visual feedback for recording status and settings.
- Durable Construction: All-metal shell ensures strength and longevity.
- Dual Power Supply: Operates with DC 9V 300mA (negative inside) or USB 5V 300mA power adapters.

Experience precision tuning, dynamic rhythms, and seamless loops in one device.
3. Package Contents
Please check the package carefully to ensure all items are present:
- 1 x M-VAVE Lost Tempo Effector Pedal
- 1 x Type-C Cable
- 1 x User Manual (English)
4. Product Overview
4.1. Controls and Indicators

Front Panel Controls and Indicators
- LOOPER VOL Knob & Loop Status Indicator: Adjusts the volume of the recorded loop. The surrounding LED indicates loop status.
- DRUM VOL Knob & Drum Status Indicator: Adjusts the volume of the drum machine. The surrounding LED indicates drum status.
- Left Button: Used for navigation and selection (e.g., changing drum patterns).
- Right Button: Used for navigation and selection (e.g., changing drum patterns).
- Display Screen: Shows current drum pattern number, tuner information, and other operational data.
- LED Indicators (1, 2, 3, 4): Indicate the currently selected loop storage location.
- LOOPER Footswitch: Controls recording, playback, overdubbing, and deletion of loops.
- DRUM Footswitch: Controls playback and stopping of drum patterns.
4.2. Input and Output Ports

Input and Output Connections
- IN (1/4" Mono Audio Input Jack): Connect your instrument (e.g., guitar) here.
- OUT (1/4" Mono Audio Output Jack): Connect to your amplifier, mixer, or other effects pedals.
- Type-C Jack: For USB power supply (5V) and data connection to a computer or app.
- Power Jack (DC 9V): Connect a DC 9V 300mA power adapter (negative inside, positive outside).
- Earphone Output Jack: Connect headphones for silent practice.
4.3. Dimensions

Compact and portable design.
5. Setup Guide
5.1. Powering the Device
The M-VAVE Lost Tempo can be powered in two ways:
- DC 9V Power Adapter: Connect a standard DC 9V 300mA power adapter (with negative center polarity) to the Power Jack.
- USB 5V Power: Connect a Type-C cable to the Type-C Jack and a USB power source (e.g., computer, USB power adapter) providing 5V 300mA or more.
Important: Ensure the power supply meets the specified voltage and current requirements to prevent damage to the pedal.
5.2. Connecting Your Equipment
- Connect your instrument (e.g., guitar) to the IN (1/4" Mono Audio Input Jack) on the right side of the pedal.
- Connect the OUT (1/4" Mono Audio Output Jack) on the left side of the pedal to your amplifier, mixer, or the input of another effect pedal.
- For silent practice, connect your headphones to the Earphone Output Jack.
- If using the app or for USB power, connect the Type-C cable to the Type-C Jack.
6. Operating Instructions

Detailed Footswitch and Button Functions
6.1. General Operation
- LOOPER VOL Knob: Rotate to adjust the playback volume of your recorded loops.
- DRUM VOL Knob: Rotate to adjust the playback volume of the drum patterns.
- Left/Right Buttons: Use these buttons to navigate through drum patterns or loop storage locations.
6.2. Footswitch and Center Button Functions
| Control | Action | Function |
|---|---|---|
| LOOPER Footswitch | Click | Play / Record / Overdub |
| Hold | Delete / Undo / Redo | |
| Click twice | Stop loop playback | |
| Hold (when in Drum mode) | Switch to Loop mode | |
| DRUM Footswitch | Click | Stop / Play drum pattern |
| Click twice | Stop all (drum and loop) | |
| Hold (when in Loop mode) | Switch to Drum mode | |
| Center Button (below display) | Click | Ready record (prepares looper for recording) / Tapping speed / SYNC |
| Hold (3 seconds) | Activate Tuner mode | |
| Hold (when in SYNC mode) | Cancel drum SYNC |
6.3. Mode Selection and Usage
The pedal offers four distinct modes:
- Tuner Mode:
To enter: Hold the Center Button for 3 seconds.
The display will show tuning information. Play a single note on your instrument, and the display will indicate if it's sharp, flat, or in tune. - Drum Machine Mode:
To enter: Hold the DRUM Footswitch (if in Looper mode).
Use the Left/Right Buttons to select one of the 30 built-in drum patterns. The display will show the pattern number.
Click the DRUM Footswitch to start/stop the drum pattern.
Adjust the drum volume with the DRUM VOL Knob. - Looper Mode:
To enter: Hold the LOOPER Footswitch (if in Drum mode).
Recording: Click the LOOPER Footswitch once to start recording. The LED around the LOOPER VOL knob will change color (e.g., red). Play your instrument.
Playback: Click the LOOPER Footswitch again to stop recording and start playback. The LED will change (e.g., green).
Overdubbing: While a loop is playing, click the LOOPER Footswitch to enter overdub mode. The LED will indicate overdubbing (e.g., flashing red). Play additional layers.
Stop: Double-click the LOOPER Footswitch to stop playback.
Delete/Undo/Redo: Hold the LOOPER Footswitch to access these functions. Follow on-screen prompts or LED indicators.
Loop Storage: Use the Left/Right Buttons to select one of the four loop storage locations (indicated by LEDs 1-4). Each location can store up to 5 minutes of audio. - Drum Machine and Looper Mixed Mode:
This mode allows simultaneous use of both functions. Start a drum pattern, then engage the looper to record over it. The volumes of the drum and loop can be adjusted independently using their respective knobs.
6.4. App Integration
The M-VAVE Lost Tempo supports a dedicated app for enhanced functionality:
- Customization: Use the app to customize and edit drum patterns beyond the built-in presets.
- Saving: Save your custom drum patterns and loop creations.
- Sharing: Share your unique drum codes with other M-VAVE Lost Tempo users.
Refer to the app's instructions for detailed usage and connectivity.
7. User Tips
- Practice Timing: For seamless loops, practice your timing when starting and stopping recordings. The visual cues on the display and LEDs can help.
- Experiment with Drum Patterns: Don't be afraid to try different drum patterns with your loops. The variety can spark new ideas.
- App Exploration: Take time to explore the companion app. It unlocks significant customization options for the drum machine, expanding the pedal's capabilities.
- Power Supply: While USB power is convenient, a dedicated 9V power supply can sometimes offer more stable performance, especially in live settings.
8. Maintenance
- Cleaning: Use a soft, dry cloth to clean the pedal's surface. Do not use liquid cleaners or abrasive materials.
- Storage: Store the pedal in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity.
- Avoid Impact: The all-metal shell is durable, but avoid dropping or subjecting the pedal to strong impacts.
- Power Off: Always disconnect the power supply when the pedal is not in use for extended periods.
9. Troubleshooting
- No Power:
Ensure the power adapter is correctly connected and meets the DC 9V 300mA (negative center) or USB 5V 300mA specifications.
Check the power outlet or USB source. - No Sound Output:
Verify all audio cables (instrument to IN, OUT to amp/mixer) are securely connected.
Check the volume knobs (LOOPER VOL, DRUM VOL) are not set to zero.
Ensure your amplifier or headphones are working correctly and their volume is up. - Looper Not Recording/Playing:
Ensure you are in Looper mode.
Check the LED indicators around the LOOPER VOL knob for recording/playback status.
Make sure a loop storage location (1-4) is selected. - Drum Machine Not Playing:
Ensure you are in Drum Machine mode.
Check the DRUM VOL knob is not set to zero.
Verify a drum pattern is selected using the Left/Right buttons. - App Connectivity Issues:
Ensure the pedal is powered on and connected via the Type-C USB cable.
Check your device's Bluetooth or USB connection settings.
Update the app to the latest version.
10. Specifications
| Feature | Detail |
|---|---|
| Material | Zinc alloy |
| Sampling Rate | 44.1k/24bit |
| LOOP Recording Capacity (Total) | 11 minutes |
| Single LOOP Position Recording Capacity | 5 minutes |
| Power Supply 1 | DC 9V ≥300mA power adapter (internal negative and external positive) |
| Power Supply 2 | USB 5V ≥300mA power adapter |
| Working Current (DC 9V) | 90mA |
| Working Current (USB 5V) | 125mA |
| Input Impedance | 1M ohm |
| Output Impedance | 100 ohm |
| Item Size (L*W*H) | 100 * 64 * 18mm / 3.94 * 2.52 * 0.71in |
| Input/Output Interface | Standard 1/4" mono interface/TS |
| Speed Adjustment | Optional (depending on model variant) |
11. Warranty and Support
M-VAVE products are designed for reliability and performance. For any technical support, warranty claims, or service inquiries, please contact your retailer or the M-VAVE customer support directly. Keep your purchase receipt as proof of purchase for warranty purposes.





