Important Safety Notes
- The machine features strong power and fast speed with a wide range of variable distances. Before use, familiarize yourself with the changes of each mode. Ensure the programming mode is empty to understand movement changes and prevent harm.
- The core of the machine uses a servo motor and PLC control board. If an error occurs, the system may not run and can only be repaired by re-energizing.
- Do not use glassware attachments with this machine. Damage resulting from such use is not covered.
- This machine is strictly prohibited for minors under the age of 18. Use this product only within the scope of legal operation.
Product Overview
The Fredorch F21S is a powerful sex machine designed for adult masturbation, featuring app control and a turbo gear power system. It offers a stroke length of 1-15cm and comes with various attachments for diverse experiences.

Setup Instructions
- Install Casing Brackets: Insert the long pipe into the short pipe clamp. Tighten the screw clockwise using an inner hexagon wrench.

Figure 2: Step-by-step visual guide for assembling the casing brackets. - Assemble Main Machine and Tube Bracket: Loosen the snap wrench in a reverse direction. Insert the pipe bracket into the snap wrench and then pull the snap wrench to lock it.
- Install the Telescopic Rod: Insert the threaded end of the telescopic rod into the main engine through the main engine bushings. Connect it with the slider inside the main engine. Twist clockwise into the threaded hole of the slider for locking.

Figure 3: Visual guide for installing the telescopic rod and adjusting the machine's angle. - Power Connection: Plug the machine into a power supply to begin operation.
Operating Instructions
1. Wireless Physical Remote Control
The F21S can be controlled wirelessly using the provided remote. After pressing the power supply mode button, you can select modes 1-9 and adjust acceleration/deceleration. Mode 1 offers a 'free mode' with an intercept distance function, allowing dynamic stroke adjustments. For example, if the telescopic distance is 8cm, pressing '1' again can quickly change it to 7-8cm short thrusting, and pressing '1' again will return it to 0-8cm.

S+: Accelerate
D-: Shorten extraction and insertion distance
ON/OFF: Start/Pause
D+: Extend extraction and insertion distance
S-: Decelerate
A: Decelerate
M1: Free mode
M2: Nine shallow and one deep
M3: Unexpected misfortune
M4: Frequency + fast in and slow out
M5: Quick insertion and slow exit
M6: Fast and slow combination mode
The bottom three buttons are various combination modes.
2. Wired Control
For wired control, connect the wire governor to the machine. The mode knob can be twisted half a circle to change modes. The speed knob and distance knob control the speed and stroke distance respectively.

3. Mobile APP Control
The machine can be controlled via a WeChat mini-program, compatible with Android and Apple systems. Scan the QR code to add the program. Click the plus sign to search for the device, then enter the desired device name and a 6-digit password. For future use, you can find the application by pulling down the WeChat main interface.

APP Connection Notes:
- Ensure Bluetooth and location information are enabled on your mobile phone. While tested on 90% of phones, some models may not be compatible.
- If connection fails, exit and re-enter the program to reconnect.
APP Control Interfaces:
The APP offers three main control interfaces:
- Remote Control Interface: Functions identically to the wireless physical remote control.
- Programming Interface: Allows detailed customization of operation modes. You can set insertion speed (output speed), extraction speed (return speed), insertion distance (distance 1), extraction distance (distance 2), and the number of repetitions (1-999). A 'tick' indicates the mode will run. Modes 1-9 run successively. You can save custom modes and load them later. The 'single cycle' button makes the machine run infinitely; otherwise, it runs once and stops. The stop button allows you to halt operation and modify settings.
- Free Interface (Test Mode): This mode allows you to manually control the machine by dragging your finger on the screen. Due to equipment and data transmission limitations, this mode operates at a low speed.
Maintenance
- Always unplug the device from the power source before cleaning.
- Clean the machine and its attachments with a mild soap and water solution or a specialized toy cleaner. Ensure all parts are thoroughly dried before storage.
- Store the machine and its components in a clean, dry place, preferably in the provided tote bag, to protect it from dust and damage.
- Regularly check all connections and moving parts for any signs of wear or damage.

Troubleshooting
- Machine not running: If the system encounters an error, it may stop functioning. Re-energize the machine by unplugging and plugging it back in.
- APP connection issues: If the mobile APP fails to connect, try exiting the program and re-entering it to establish a successful connection.
- Other problems: For any other issues or persistent problems, please consult customer service for assistance.
Specifications
| Feature | Detail |
|---|---|
| Brand Name | Fredorch |
| Item Type | Masturbation Machine |
| Model | F21S (also available in F6, FR2 variants) |
| Power Mode | Plug-in type |
| Motor Power | 200W (variants include 60W, 80W, 120W) |
| Control Method | Remote Control (Wireless & Wired), Mobile APP |
| Stroke Length | 1-15cm (0.39-5.91 inches) |
| Material | Metal |
| Certifications | CE, FCC |
| Package Dimensions (approx.) | Length: 35cm, Width: 20cm, Height: 10cm |
| Package Weight (approx.) | 10.0 kg |


User Tips
- Master the Modes: Take time to understand each operating mode and its effect on the machine's movement before extensive use. This will enhance your experience and prevent unexpected actions.
- Dynamic Stroke Adjustment: Experiment with the remote control's 'free mode' (Mode 1) to dynamically adjust the stroke length. This feature allows for a highly customizable and engaging experience.
- Test Mode for Exploration: Use the APP's 'Free Interface' as a test mode to explore movements at lower speeds. This is ideal for familiarizing yourself with the machine's capabilities in a controlled manner.
Warranty and Support
For detailed information regarding product warranty, returns, and refunds, please refer to the official seller's policies. This product is certified with CE and FCC standards, ensuring compliance with relevant safety and quality regulations.
A comprehensive user manual is available in PDF format for further guidance. You can access it here.
For any issues not covered in this manual or for further assistance, please contact Fredorch Official Store customer service.