Introduction
The New Bee GT40 is a versatile and accurate clip-on instrument tuner designed for a wide range of stringed instruments including guitar, bass, ukulele, violin, and cello. Featuring a bright color display, 360° rotatable clip, and a rechargeable battery, this tuner provides fast and precise tuning for musicians of all levels. This manual will guide you through the setup, operation, maintenance, and troubleshooting of your New Bee GT40 tuner.
What's in the Box
Please check the package contents to ensure all items are present:
- New Bee GT40 Guitar Tuner
- USB-C Charging Cable
- User Manual (this document)

Product Features
- Fast & Accurate Tuning: Equipped with an advanced digital processor and high-sensitivity piezo sensor for quick and precise tuning across various instruments.
- Bright Color Display: High-resolution color screen ensures clear visibility in diverse lighting conditions, from dark stages to bright outdoor environments.
- Rechargeable Battery: Provides approximately 6 hours of continuous tuning on a single charge. Includes a USB-C charging cable for convenient recharging.
- 360° Rotatable Clip: The tuner features a 360° swivel and 135° tilt, allowing for optimal viewing angles on any headstock, whether left or right-handed. The padded clamp protects your instrument's finish.
- Compact & Portable: Its ultra-compact design allows it to fit easily in a guitar bag or pocket, making it ideal for on-the-go use.
- Multi-Instrument Support: Supports Chromatic, Guitar, Bass, Ukulele, and Violin tuning modes.


Setup
1. Charging the Tuner
Before first use, fully charge the tuner. Connect the supplied USB-C cable to the tuner's charging port and plug the other end into any standard USB power source (e.g., computer, USB wall adapter). The battery indicator on the screen will show charging status. A full charge provides approximately 6 hours of working time.

2. Attaching the Tuner
Clip the tuner onto the headstock of your instrument. The padded clamp ensures a secure grip without damaging the instrument's finish. Adjust the tuner's angle using its 360° rotational and 135° tilt capabilities for optimal viewing.


Operating Instructions
1. Power On/Off
Press and hold the power button (usually located on the side) for a few seconds to turn the tuner on or off. The display will light up when powered on. The tuner will automatically switch off after 5 minutes of no signal input to conserve battery life.
2. Selecting Tuning Mode
Briefly press the power button to cycle through the available tuning modes: Chromatic (C), Guitar (G), Bass (B), Ukulele (U), and Violin (V). Select the mode appropriate for your instrument.

3. Tuning Your Instrument
Once the tuner is attached and the correct mode is selected, pluck a single string on your instrument. The tuner will detect the vibration and display the note name and pitch accuracy on the screen.
- Flat: If the note is flat, the left side of the display will illuminate (typically yellow/green), and the needle will be to the left of the center. Tighten the string until the display indicates it is in tune.
- Sharp: If the note is sharp, the right side of the display will illuminate (typically red), and the needle will be to the right of the center. Loosen the string until the display indicates it is in tune.
- In Tune: When the note is in tune, the center of the display will illuminate (typically blue/green), and the needle will be centered.

Maintenance
To ensure the longevity and optimal performance of your New Bee GT40 tuner, follow these maintenance guidelines:
- Cleaning: Wipe the tuner with a soft, dry cloth. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the display or casing.
- Storage: Store the tuner in a cool, dry place away from direct sunlight and extreme temperatures. When not in use for extended periods, ensure it is fully charged before storage and periodically recharge it to maintain battery health.
- Handling: Handle the tuner with care. Avoid dropping it or subjecting it to strong impacts, which can affect its internal components and accuracy.
Troubleshooting
If you encounter issues with your New Bee GT40 tuner, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Tuner does not power on. | Low battery or no charge. | Charge the tuner using the provided USB-C cable. Ensure the charging cable and power source are functional. |
| Inaccurate or inconsistent tuning. | Incorrect tuning mode selected; external noise interference; loose connection to instrument. | Verify the correct tuning mode (C, G, B, U, V) is selected. Ensure you are in a quiet environment. Re-clip the tuner securely to the instrument's headstock. |
| Display is dim or unresponsive. | Low battery; tuner malfunction. | Charge the tuner. If the issue persists after charging, contact customer support. |
| Tuner automatically turns off too quickly. | Power-saving feature activated. | The tuner is designed to turn off after 5 minutes of no signal input to save battery. This is normal operation. |
Specifications
| Feature | Specification |
|---|---|
| Model Number | GT40 |
| Tuning Modes | Chromatic, Guitar, Bass, Ukulele, Violin |
| Detection Method | Vibration (Piezo Sensor) |
| Power Supply | Rechargeable Lithium Polymer Battery |
| Battery Capacity | 90mAh |
| Working Time | Approx. 6 hours per charge |
| Charging Port | USB-C |
| Display | Color LCD |
| Rotation | 360° Swivel, 135° Tilt |
| Dimensions | 1.85 x 1.96 x 1.22 inches (47 x 49.8 x 31 mm) |
| Weight | 1.76 ounces (50g) |
| Material | Plastic |
Warranty and Support
New Bee products are designed for reliability and performance. For any questions, technical assistance, or warranty claims, please refer to the contact information provided with your purchase or visit the official New Bee website. Keep your purchase receipt as proof of purchase for warranty services.





