Sex Doll Function
Sex Doll Function Guide: Auto-Blowjob
What Is the Auto-Blowjob Function in Sex Dolls?
The auto-blowjob function in modern sex dolls is an integrated motorized mechanism designed to deliver automated, repetitive oral movement. Depending on the engineering behind each model, this movement is driven by an internal neck actuator, an upper-body or waist mechanism, or a motorized head module.
For buyers seeking a hands-free experience, understanding how each sex doll manufacturer designs this feature—and which doll bodies support it—is essential before making a purchase.
How It Works: Common Mechanics & Key Differences
While all automatic oral systems share the core goal of motorized oral motion, the engineering and user controls differ significantly across manufacturers:
- Movement Types: Some models move the head forward and backward at the neck joint, while others rely on rhythmic waist flexion to create motion.
- Control Systems: Dolls feature either multi-speed wireless remotes, inline wired controllers, or stepless dial knobs on the power supply.
- Power Supply: Most units use a dedicated plug-in DC adapter connected discreetly via a charging port located at the foot, ankle, or lower back.
- Weight & Flexibility: Adding a motorized unit typically introduces 3 to 6 kg of extra weight and may slightly limit the doll’s natural joint articulation.
Which Sex Doll Brands Feature the Auto-Blowjob Function
SE Doll
SE Doll markets its automatic oral feature under the proprietary name Blowjob Sexbot. Over recent production runs, the brand upgraded the system to provide a more direct, realistic motion.
(Video Demonstration: SE Nodding Head Blowjob Sexbot)
(Video Demonstration: SE Hip Thrusting Blowjob Sexbot)
Mechanism & Evolution:
- Early Generation: Used a waist-mounted motor where pelvic rocking produced oral motion (with secondary movement felt at the vaginal and anal chambers).
- Upgraded Generation: Relocated the actuator directly into the neck area, allowing the head to articulate forward and backward for direct oral interaction.
- Materials Supported: Compatible with both TPE and STPE sex doll bodies.
- Compatible Body Models: 148E, 150E, 158E, 163E, and 168F.
- Controls & Operation: Operated via a 4-button wireless remote: Low Speed, Medium Speed, High Speed, Pause.
MD Doll
MD Doll integrates a balanced internal motor focusing on adjustable stroke length and simple wireless operation.
(Video Demonstration: MD Automatic Oral Sex)
Mechanism: Internal motorized drive designed for fluid, rhythmic head and mouth motion.
Controls: Includes a dedicated wireless remote that adjusts both the speed (3-gear settings) and the motion amplitude (stroke depth).
Operation: Plug-and-play setup; the doll must be stably posed before activating high-speed settings.
Jarliet Doll
(Video Demonstration: Jarliet Auto Blowjob Functions)
Due to internal space requirements for the motor and gearing, the Auto-Oral feature is only available on specific body sizes.
| Material | Compatible Sizes (Supported) | Incompatible Sizes |
| Silicone | 154cm, 160Mcm, 163cm, 165cm | 148cm, 167cm |
| TPE | 152cm, 154cm,
160Mcm, 163Scm, 165Ycm, 165Mcm, 166Mcm, 171cm |
90cm, 100cm, 125cm, 128cm, 133cm, 140cm |
SY Doll
SY Doll’s option as plug-and-play, with a stepless adjustment knob on the power module. It says users can choose a soft head or a movable jaw head, that the option is for dolls over 140 cm, and that very slim waists are incompatible.
(Video Demonstration: SY Automatic blowjob)
Remote control discription
- A: Speed up
- B: Turn on/ off
- C: Slow down
- D: Cycling speed up and slow down
If there is no response for the remote control during use, consider whether the battery of the remote control needs to be replaced, or whether the local signal interferes. Remote control battery model: CR2032.
Irontech Doll
Irontech Doll incorporates a high-torque internal skeleton mechanism marketed as the Oral Sex Movement module.
- Added Weight: Adds approximately +6 kg to the overall body weight.
- Incompatible Models: Cannot be added to 148cm, 166cm, or 158BA Silicone female bodies.
- Caution: The internal motor reduces the natural flexibility of the neck and upper spine. Do not forcefully bend or twist the neck or waist, as this can damage the motorized skeleton. Always return the doll’s torso to a straight, neutral resting position before turning off the power.
(Video Demonstration: Irontech Auto Blowjob Function 1)
(Video Demonstration: Irontech Auto Blowjob Function 2)
Beyond the brands listed above, many other manufacturers also offer the auto-blowjob feature. While we cannot list every model here, you can easily verify whether a specific doll supports this function in the ‘Premium Options’ section on its individual product page.
