1. Introduction
The Voice Caddie SL3 is an advanced golf device combining laser rangefinder technology with GPS capabilities. It provides precise distance measurements, course layout information, and green undulation data to enhance your golf experience. This manual will guide you through the setup, operation, and maintenance of your SL3 device.

Figure 1: Voice Caddie SL3 True Hybrid GPS and Laser Range Finder.
2. Package Contents
Before you begin, please ensure all items are present in the package:
- Voice Caddie SL3 Laser Range Finder
- Pouch
- Cleaner
- USB Charging Adapter
- User Manual (this document)
3. Setup
3.1 Initial Charging
The SL3 is powered by a Lithium-Ion Polymer battery. For optimal performance, fully charge the device before its first use.
- Connect the provided USB Charging Adapter to the charging port on the SL3.
- Plug the adapter into a standard USB power source.
- The charging indicator will illuminate. Charging is complete when the indicator changes color or turns off (refer to the device display for exact status).
3.2 Power On/Off
- To power on: Press and hold the Power button until the display activates.
- To power off: Press and hold the Power button until the device shuts down.
4. Operating Instructions
4.1 Laser Rangefinder Operation
The SL3 utilizes laser technology for precise distance measurements.
- Targeting: Look through the eyepiece and align the crosshairs with your target (e.g., flagstick, bunker).
- Measurement: Press the measurement button. The distance will be displayed on the OLED screen within 0.1 seconds.
- Pin-Tracing Precision: For flagsticks, the device will vibrate and provide an alert once the pin is locked, minimizing background interference.
- V-algorithm™: This technology provides accurate distance readings by accounting for elevation and terrain properties.

Figure 2: SL3's rapid measurement and Pin Tracer Technology.
4.2 GPS Functionality
The integrated GPS provides comprehensive course information.
- Course Layout: The SL3 displays the overall course layout, including hole handicap, bunkers, hazards, shot distance, and driver landing zones.
- Green Undulation: Once on or near the green, the GPS display optimizes to show green undulation and pin distance from a 360-degree angle, displaying eleven terrain elevations.
- Putt View: Utilize the Putt View function to gauge elevation and distance for critical putts.
- GPS Pin Assist: This feature uses GPS data to filter background elements and accurately identify the pin.

Figure 3: Green undulation and course preview features.
4.3 Display and Modes
- Dual-Color OLED Display: The adjustable dual-color OLED display ensures optimal visibility in various lighting conditions.
- Slope Integration: The SL3 includes slope measurement for adjusted distances.
- Tournament Mode: A dedicated switch allows you to disable the slope function, making the device legal for tournament play.

Figure 4: Premium design and key features including slope switch.
5. Features Overview
The Voice Caddie SL3 is designed with a range of features to enhance your golf game:
- 360° Precision: Combines GPS and laser technology for accurate distance measurements.
- Strategic Insight: Provides course layout and green undulation data for effective shot planning.
- Enhanced Visibility: Adjustable dual-color OLED display for clear viewing in all conditions.
- Pin-Tracing Precision: Effortlessly locks onto the pin with vibration alerts.
- Putt with Confidence: Putt View function assists in gauging elevation and distance for putts.
- 6X Optical Magnification: Provides clear and magnified views of the target.
- Premium Leather Grip: Crafted with a durable metal and leather-look finish for a comfortable and secure grip.
- Water Resistant: IPX4 rating ensures protection against splashing water.

Figure 5: Key features of the Voice Caddie SL3.
6. Maintenance
6.1 Cleaning
To maintain optical clarity and device performance:
- Use the provided cleaner cloth to gently wipe the lenses and display screen.
- Avoid using abrasive materials or harsh chemicals, which can damage the optics or finish.
- Wipe the body of the device with a soft, damp cloth as needed.
6.2 Battery Care
To prolong battery life:
- Charge the device regularly, especially if it will be stored for an extended period.
- Avoid fully discharging the battery frequently.
- Store the device in a cool, dry place away from extreme temperatures.
7. Troubleshooting
If you encounter issues with your Voice Caddie SL3, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on | Low or depleted battery | Charge the device using the provided USB adapter. |
| Inaccurate laser readings | Obstructed view, dirty lens, or targeting incorrect object. | Ensure a clear line of sight. Clean the lens with the provided cloth. Re-target the desired object. |
| GPS takes long to acquire signal | Poor satellite reception (e.g., heavy tree cover, indoors) | Move to an open area with a clear view of the sky. Allow more time for initial GPS lock. |
| Display is dim or hard to read | Brightness setting too low, or extreme lighting conditions. | Adjust the display brightness settings. The dual-color OLED is designed for various conditions, but direct sunlight can still affect visibility. |
| Charging cable does not stay connected | Cable not fully inserted or port obstruction. | Ensure the USB charging adapter is firmly inserted. Check the port for any debris. |
If the problem persists, please contact Voice Caddie customer support.
8. Specifications
Detailed technical specifications for the Voice Caddie SL3:
| Specification | Detail |
|---|---|
| Brand | Voice Caddie |
| Model Name | SL3 |
| Item Weight | 8 Ounces |
| Battery Type | Lithium-Ion Polymer |
| Water Resistance Level | Water Resistant (IPX4) |
| Measuring Range | Up to 800 yards |
| UPC | 856640005666 |
| Item Dimensions (LxWxH) | 4.29 x 1.61 x 3.06 inches |
| Material | Plastic |
| Color | SL3 Laser (Gray) |
9. Warranty Information
The Voice Caddie SL3 comes with a One Year Manufacturer Warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims. For specific terms and conditions, refer to the warranty card included with your product or visit the official Voice Caddie website.
10. Support
For further assistance, technical support, or to inquire about service, please contact Voice Caddie customer support through their official channels. You can typically find contact information on the Voice Caddie website or on the product packaging.
Visit the official Voice Caddie store for more information: Voice Caddie Store