In February 2026, SY, a leading manufacturer of high-end sex dolls, proudly introduced a new innovation—the Licking Tongue Function. This feature represents the company’s continued commitment to improving realism and enhancing the overall user experience. From the earliest inflatable dolls to today’s highly advanced and interactive models, sex dolls have steadily evolved toward more immersive and lifelike designs.

The new function is specifically designed for dolls equipped with SY’s soft silicone oral sex head. In addition to traditional oral stimulation, this new technology significantly increases sensation and realism. Below is a closer look at this innovative feature and how it enhances the overall experience.

What Is the Licking Tongue Function?

The Licking Tongue Function is an integrated electronic feature launched by SY Dolls in February 2026. It is exclusively designed for their ROS soft silicone tongue system. This feature represents not only a technical upgrade but also a major step toward creating a more realistic oral sex experience.

Unlike conventional sex dolls, SY redesigned the internal tongue structure and added a precision micro-motor. This allows the tongue to move dynamically rather than remaining fixed. Once activated, users can choose between two distinct motion modes, each designed to provide a different type of stimulation.

1. Gentle and Delicate Extension

In this mode, the doll’s tongue moves forward and backward with slow, smooth motions. The movement follows the natural curves of the mouth, creating a soft brushing sensation against sensitive areas. The motion is subtle and controlled, similar to the light touch of a dragonfly skimming the surface of water.

This mode is designed to simulate the gentle, natural rhythm of real oral intimacy. It is ideal for users who prefer a softer, more gradual buildup of sensation and a relaxed, realistic experience.

2. 360° Continuous Rotation

Compared with the extension mode, this option provides a more intense experience. In this setting, the tongue rotates continuously in a full 360-degree motion along a preset path. The movement mimics the varied motions typically associated with real oral stimulation.

This rotating action creates a stronger and more stimulating sensation, making it suitable for users who prefer a more dynamic and immersive experience.

Both modes support adjustable speed settings, allowing users to customize the rhythm and intensity according to personal preference. Whether you enjoy slow, gentle movements or faster, more vigorous stimulation, the system can be easily adjusted to suit your needs.

It is important to note that this feature is available only on SY Dolls equipped with the company’s specialized soft silicone oral system. These dolls are typically made from high-grade silicone that offers a highly realistic texture and feel. When combined with the built-in oral heating function, the overall sensation closely replicates the warmth and softness of a real human mouth, redefining expectations for modern adult dolls.

How to Use the Tongue-Licking Function

To ensure a convenient and enjoyable experience, the tongue-licking feature is designed to be simple and user-friendly. Each doll comes with a remote control, eliminating the need for complicated setup procedures. With just a few button presses, users can activate and control the different modes.

Follow these four simple steps to get started:

Step 1: Connect the Power

Locate the power input port behind the doll’s ear. The port is discreetly positioned to maintain the doll’s natural appearance. Connect the power cable to activate the internal system—similar to charging a mobile phone.

Step 2: Activate Rotation Mode

The top button on the remote controls the rotating licking mode. Press the button once to start the circular tongue movement. Press it again to switch between different speed levels.

The system usually includes three to four speed settings, ranging from slow to fast. By repeatedly pressing the button, users can easily select their preferred rotation speed, allowing for either gentle stimulation or more rapid movement.

Step 3: Activate Extension Mode

The bottom button controls the tongue’s forward-and-back extension motion. Press it once to activate the movement, and press again to adjust the frequency.

This motion is designed to simulate natural mouth movements. The slower setting provides a gradual and teasing sensation, while the faster setting delivers a more intense experience. Users can switch between speeds at any time to personalize the interaction.

Step 4: Pause or Stop

The center button functions as a pause or stop control. Pressing this button immediately halts all movement, whether the system is in rotation mode or extension mode.

This makes it easy to adjust the rhythm at any moment or stop the function completely when the session is finished.

Important Usage Notes

This feature is exclusive to SY products.

Currently, the tongue-licking system is designed specifically for SY Dolls’ M-series soft silicone head models. When customizing a full-size doll, it is important to confirm that the selected model supports this function.

After each use, always disconnect the power cable.

Leaving the device connected to power for long periods keeps the internal motor in standby mode. Over time, this may increase power consumption, accelerate motor wear, and reduce the overall lifespan of the mechanism. Unplugging the device after use helps conserve energy and protect the internal components.

It is also essential to keep the charging port dry.

The power input port located behind the ear is an electronic interface and must remain free from moisture. Avoid allowing water to enter the port during cleaning. Moisture inside the port could cause a short circuit and potentially damage the internal motor or circuitry.

If the interface accidentally becomes wet, gently dry it with a cotton swab and allow the doll to air dry completely in a cool, well-ventilated area before reconnecting the power.

A New Era of Oral Experience

The introduction of the tongue-licking function represents more than just another product upgrade—it marks a significant step forward in the evolution of interactive adult dolls. By adding dynamic tongue movement and adjustable stimulation patterns, SY Dolls has greatly improved the realism and immersion of oral experiences.

Traditional dolls often feature fixed, unmoving tongues, which can feel rigid and repetitive. This limitation prevents them from delivering the level of realism many users expect.

By contrast, SY’s innovative system combines smooth extension motions with rotating movements to better replicate the natural dynamics of the human mouth. With adjustable speed and movement modes, users can tailor the experience to their personal preferences, creating a more satisfying and immersive encounter.

As technology continues to evolve, features like the tongue-licking function demonstrate how modern adult dolls are moving closer than ever to realistic interaction and responsive design.