1. Product Overview
The Untamed T-Rex Fingerlings are interactive, finger-gripping creatures that exhibit fierce and unpredictable behaviors. They are designed to react to touch, motion, and sound with over 40 different sounds and animations. Each T-Rex features snapping jaws and gripping claws, offering unique play experiences.
- Interactive Modes: Engage in untamed mode with roars, hisses, and chomps, or switch to tame mode for nuzzles and purrs.
- Sensory Reactions: Responds to sound, motion, and touch.
- Dynamic Movements: Features wild roars, chomping jaws, and even unique dinosaur sounds.
- Secure Grip: Designed to grip onto your finger, fostering a sense of loyalty.

Figure 1: The Untamed T-Rex Fingerlings gripping a finger, showcasing its interactive design.
2. Setup and Initial Use
2.1 Battery Installation
Your Untamed T-Rex requires 4 LR44 batteries (AG13), which are included with the product. To install or replace batteries:
- Locate the battery compartment on the underside of the T-Rex.
- Using a small screwdriver, open the battery compartment cover.
- Insert 4 LR44 (AG13) batteries, ensuring correct polarity (+/-).
- Securely close the battery compartment cover.
2.2 Powering On
Once batteries are installed, power on your T-Rex. It will greet you with a unique greeting call, indicating it is ready for interaction.

Figure 2: The Untamed T-Rex Fingerlings in its original packaging, showing the product's presentation.
3. Operating Your Untamed T-Rex
The Untamed T-Rex offers two primary modes of interaction: Tame Mode and Untamed Mode. It responds to various stimuli including touch, motion, and sound.
3.1 Tame Mode
In Tame Mode, your T-Rex will exhibit friendly behaviors. It may nuzzle, purr, and make happy sounds. Gentle interactions typically keep it in this mode.
3.2 Untamed Mode
In Untamed Mode, the T-Rex becomes fierce and unpredictable. Expect roars, hisses, and chomping actions. More aggressive interactions or sudden movements can trigger this mode.
3.3 Interactive Features
- Touch Sensors: The T-Rex has sensors that react to touch on its head and other areas. Experiment with different touches to discover various reactions.
- Motion Sensors: Shake, tilt, or move your T-Rex to trigger different sounds and animations. It can even hang upside down.
- Sound Recognition: Clap your hands, speak to it, or make loud noises to elicit responses.

Figure 3: The T-Rex in an active pose, demonstrating its gripping ability and open mouth for chomping sounds.

Figure 4: The T-Rex hanging upside down, illustrating its versatile interaction capabilities.
Video 1: Official product demonstration of the Untamed T-Rex Fingerlings, showcasing various interactive features and modes.
4. Maintenance
To ensure the longevity of your Untamed T-Rex Fingerlings, follow these simple maintenance guidelines:
- Cleaning: Wipe the surface with a soft, dry cloth. Do not immerse in water or use harsh cleaning agents.
- Storage: Store the T-Rex in a cool, dry place away from direct sunlight when not in use.
- Battery Care: Remove batteries if the toy will not be used for an extended period to prevent leakage.
5. Troubleshooting
If you encounter any issues with your Untamed T-Rex, please refer to the following common solutions:
- No Power: Ensure batteries are correctly installed and are not depleted. Replace with fresh LR44 (AG13) batteries if necessary.
- Limited Response: Check for any obstructions around the sensors. Ensure the environment is not excessively noisy, which might interfere with sound recognition.
- Unexpected Behavior: Try turning the T-Rex off and then on again to reset its internal programming.
6. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 2.97 x 2.27 x 5.66 inches |
| Item Weight | 7.4 ounces |
| Item Model Number | 3787 |
| Manufacturer Recommended Age | 5 - 15 years |
| Batteries | 4 LR44 batteries required (included) |
| Manufacturer | WowWee Import |
| Release Date | August 15, 2018 |
7. Warranty and Support
For warranty information or further support, please contact WowWee customer service directly. Visit the official WowWee website or refer to the contact information provided on the product packaging for assistance.