LELO - F2S Double Sonic App-Controlled Massager and Stroker

Meet the LELO F2S™ Double Sonic, a next-generation app-connected massager and stroker designed to turn every movement into a responsive, full-bodied experience. Two 103 Hz sonic stimulators, a soft self-adjusting sleeve and advanced interactive modes combine for powerful pleasure, training and personalised control.

Key Features

• Double Sonic stimulation: Dual 103 Hz sonic stimulators deliver deep, focused sensations from both sides.
• 13 pleasure modes: Explore 8 built-in modes plus 5 additional modes through the app.
• 16 intensity levels: Fine-tune every session with SmoothRise transitions for fluid changes in power.
• AI Interactive mode: Built-in sensing responds to movement and synchronises vibration intensity in real time.
• Humanize rhythms: Natural, off-beat patterns help each session feel less predictable and more lifelike.
• Guided Stamina training: App-guided Kegel and stamina routines support better control and sexual wellness.
• Open-ended fit: The liquid silicone sleeve and self-adjusting ribs comfortably accommodate diameters from 34–45 mm.
• Fully waterproof: Enjoy easy cleaning and worry-free wet play.

1. Charge F2S fully before first use; a complete charge takes up to 2 hours.
2. Apply a generous amount of water-based lubricant to the opening and body.
3. Press the power button and choose from the built-in modes and 16 intensity levels.
4. Connect to the LELO app to unlock Humanize, additional modes, AI Interactive and guided Stamina training.
5. After use, rinse thoroughly and allow the product to dry completely.

Clean before and after every use with warm water and a suitable toy cleaner. Rinse thoroughly, dry completely and store in a cool, dry place. Use water-based lubricant only to protect the silicone sleeve.

What is Double Sonic stimulation?
F2S uses two 103 Hz sonic stimulators to deliver stimulation from both sides of its soft silicone sleeve. The self-adjusting ribs add texture, while adjustable settings let you tailor the intensity to your preference.

Can I use the LELO F2S without the app?
Yes. The three-button interface gives you access to 8 built-in modes without using your phone. Connect to the LELO app for 5 additional modes, Humanize rhythms, AI Interactive mode and guided Stamina training.

What is the difference between modes and intensity levels?
Modes change the stimulation pattern; intensity levels change its strength. F2S offers 13 modes in total (8 built-in and 5 in the app) and 16 intensity levels, with SmoothRise transitions for gradual changes in power.

How are AI Interactive mode and Humanize different?
AI Interactive mode uses sensing to respond to movement and adjust stimulation intensity. Humanize introduces off-beat rhythms for a less repetitive pattern. Both are app features that offer different ways to personalise your session.

How do I know if F2S will fit me?
The self-adjusting sleeve is designed for diameters from 34–45 mm and has an open-ended design. Check this range before choosing, use plenty of water-based lubricant and never force a fit that feels uncomfortable.

What does Stamina training offer?
The app includes guided Kegel and stamina routines for structured practice. These features are optional: you can also enjoy F2S using its standard modes without following a training routine.

Which lubricant should I use with F2S?
Use a water-based lubricant to help the silicone sleeve glide comfortably. Apply it before use and reapply as needed; follow the product's care instructions to protect the sleeve.

Is F2S waterproof, and how do I clean it?
Yes, F2S is fully waterproof. Clean it before and after each use with warm water and a suitable toy cleaner, rinse thoroughly and allow it to dry completely. Make sure the charging area is dry before charging.

How long does charging take, and how much use will I get?
A full charge takes up to 2 hours and provides up to 2 hours of use. Actual run time depends on the modes and intensity levels selected.

What warranty comes with the LELO F2S?
F2S comes with a 2-year warranty. Refer to the supplied warranty information for coverage, eligibility and claim instructions.