Lelo F2S Double Sonic Masturbator

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LELO F2S™ Double Sonic Masturbator

The LELO F2S™ Double Sonic Masturbator combines dual sonic stimulation, adaptive technology and app-connected control in a premium rechargeable design. Unlike a conventional manual sleeve, F2S uses two motors positioned on opposite sides of the internal channel to create sonic stimulation throughout the contact area.

With 13 stimulation modes — 8 built into the device and 5 additional modes available through the LELO™ app — plus 16 intensity levels, F2S offers extensive control over the experience. LELO's SmoothRise™ technology provides gradual intensity transitions rather than abrupt jumps between power levels.

For a less predictable experience, Humanize introduces subtle variations in rhythm and intensity. AI Mode uses the built-in sensor to respond to movement and adapt the character of the stimulation as the device is being used.

Bluetooth connectivity expands the available features through the LELO™ app, including additional modes and stamina-training functionality. LoveBridge also provides remote partner-control capabilities through compatible app functionality.

F2S is made from body-safe silicone, ABS and aluminum alloy and measures approximately 14 x 8.2 cm. Despite its substantial 360 g construction, the rechargeable design provides up to 2 hours of operation and remains below 60 dB according to the supplied specifications.

For comfortable use and material compatibility, use F2S with a generous amount of Water-Based Lubricant. For routine maintenance, browse our Toy Cleaners.

Why It's So Good

• Dual Sonic Stimulation: Two motors provide sonic stimulation from opposite sides of the internal channel.
• 2 Motors: Dual-motor construction creates a more dynamic experience than a conventional non-powered sleeve.
• 13 Stimulation Modes: Includes 8 onboard modes plus 5 additional modes available through the LELO™ app.
• 16 Intensity Levels: Provides a wide adjustment range for personalized power.
• SmoothRise™: Gradually transitions between intensity levels for smoother power changes.
• Humanize: Introduces subtle variations in rhythm and intensity rather than maintaining a perfectly repetitive pattern.
• AI Mode: Uses a built-in sensor to respond to movement and adapt stimulation.
• LELO™ App: Unlocks additional modes, controls and compatible connected features.
• LoveBridge: Supports remote partner control through compatible app functionality.
• Stamina Training: Additional training functionality is available through the LELO™ app.
• Bluetooth Connectivity: Connects wirelessly to a compatible mobile device.
• 100% Waterproof: Waterproof construction helps simplify routine cleaning.
• Up to 2 Hours of Use: Rechargeable lithium battery provides extended cordless operation.
• Quiet Operation: Maximum specified noise level is below 60 dB.

Materials, Measurements & Specifications

• Brand: LELO
• Model: F2S™ Double Sonic
• Product Type: Dual sonic masturbator
• Materials: Body-safe silicone, ABS and aluminum alloy
• Dimensions: 14 x 8.2 cm / approximately 5.5 x 3.2 in
• Diameter: 34–45 mm / approximately 1.34–1.77 in
• Weight: 360 g / approximately 12.7 oz
• Motors: 2
• Motor 1 Frequency: 103 Hz
• Motor 2 Frequency: 103 Hz
• Built-In Modes: 8
• Additional App Modes: 5
• Total Stimulation Modes: 13
• Intensity Levels: 16
• Intensity Technology: SmoothRise™
• Humanize: Yes
• AI Mode: Adaptive sensor-based stimulation
• Stamina Training: Available through LELO™ app
• Remote Partner Control: LoveBridge
• Connectivity: Bluetooth
• On-Device Controls: 3 buttons
• Battery: Rechargeable lithium, 3.7 V
• Charging Time: Up to 2 hours
• Operating Time: Up to 2 hours
• Standby Time: Up to 90 days
• Automatic Shut-Off: After 20 minutes
• Maximum Noise Level: < 60 dB
• Waterproof: 100%
• Input: 5 V / 680 mA / 3.4 W
• Output: 3.7 V / 400 mA / 1.5 W

Smart Technology

Dual Sonic Stimulation: F2S uses two 103 Hz motors positioned around the internal channel. This dual-sided configuration is designed to distribute sonic stimulation across a broader contact area rather than concentrating all motor activity at one point.

SmoothRise™: With 16 available intensity levels, SmoothRise™ is designed to make transitions between power levels feel gradual and controlled instead of creating sudden changes.

Humanize: Rather than repeating an identical programmed rhythm continuously, Humanize introduces subtle variations in the timing and intensity of the sonic impulses.

AI Mode: The supplied product information describes AI Mode as using a built-in sensor to recognize movement and adapt stimulation accordingly. This allows the device to respond dynamically rather than operating exclusively from a fixed pattern.

LoveBridge: LoveBridge provides remote partner-control functionality through the compatible LELO™ app. Available remote features, connection requirements and operating range depend on LELO's current software and service functionality.

App Note: The supplied information confirms Bluetooth connectivity, five additional stimulation modes, stamina training and LoveBridge functionality through the LELO™ app. App features, phone compatibility, operating-system requirements and account requirements may change with software updates.

What's Included

• LELO F2S™ Double Sonic Masturbator
• USB charging cable
• Satin storage pouch
• Warranty registration card
• User manual
• Lubricant sample

Staff Tip

Start with the onboard controls before exploring the smart features. F2S already provides 8 built-in modes and 16 intensity levels, so become familiar with its basic operation first. Once you've found a comfortable baseline, Humanize and AI Mode make it easier to notice how the device changes its stimulation, while the LELO™ app opens the additional connected features.

Recommended Accessories

• Water-Based Lubricant: F2S should be used with plenty of compatible lubricant for smooth, comfortable movement through the silicone-lined channel. Browse our Water-Based Lubricants.
• Toy Cleaner: Thorough cleaning of the internal channel is particularly important with sleeve-style products. Browse our Toy Cleaners for compatible options.

FAQ

What is LELO F2S Double Sonic?
F2S Double Sonic is a rechargeable masturbator combining two sonic motors, 13 available stimulation modes, 16 intensity levels, adaptive sensor technology and LELO™ app connectivity.

What does dual sonic stimulation mean?
F2S uses two sonic motors positioned on opposite sides of its internal channel. Both motors are specified at 103 Hz and are designed to distribute sonic stimulation across the contact area.

How many motors does F2S have?
F2S Double Sonic has 2 motors.

How many stimulation modes does F2S have?
There are 13 available modes: 8 built into the device and 5 additional modes accessible through the compatible LELO™ app.

How many intensity levels are available?
F2S provides 16 intensity levels with SmoothRise™ technology for gradual power transitions.

What is Humanize?
Humanize introduces subtle variations in rhythm and intensity, helping prevent the stimulation from feeling like an endlessly repeated programmed loop.

What is AI Mode?
According to the supplied specifications, AI Mode uses a built-in sensor to detect movement and adapt the character of the stimulation in response.

What is SmoothRise™?
SmoothRise™ is LELO's intensity-adjustment technology designed to create smoother transitions as you move between F2S's 16 power levels.

Does LELO F2S connect to a smartphone?
Yes. F2S uses Bluetooth connectivity with the compatible LELO™ app.

What does the LELO app add?
The supplied specifications include 5 additional stimulation modes, stamina-training functionality, connected controls and LoveBridge remote partner control. Available features may depend on the current app version.

What is LoveBridge?
LoveBridge is the supplied remote partner-control feature for F2S. It operates through compatible LELO™ app functionality.

Can F2S be used without the app?
F2S has three onboard control buttons and 8 built-in stimulation modes. The five additional modes and certain connected features require the compatible LELO™ app.

How large is LELO F2S Double Sonic?
The supplied dimensions are approximately 14 x 8.2 cm (5.5 x 3.2 in), with a listed diameter range of 34–45 mm (1.34–1.77 in).

How much does F2S weigh?
F2S weighs approximately 360 g / 12.7 oz.

What materials are used?
The supplied specifications list body-safe silicone, ABS and aluminum alloy.

Is LELO F2S waterproof?
Yes. The supplied product specifications describe F2S Double Sonic as 100% waterproof. Follow LELO's current instructions regarding appropriate water exposure.

How long does F2S run?
The supplied specifications state up to 2 hours of operating time. Actual runtime can vary with the selected modes, intensity, connected features and battery condition.

How long does F2S take to charge?
Charging takes up to 2 hours according to the supplied specifications.

Does F2S automatically turn off?
Yes. The supplied specifications list an automatic shut-off after 20 minutes.

How loud is F2S?
The supplied specifications list a maximum noise level of below 60 dB. Perceived sound can vary according to setting and surroundings.

What lubricant should I use with LELO F2S?
Use a compatible Water-Based Lubricant. Apply enough to maintain comfortable movement and reapply when needed.

How should I clean F2S?
Clean the exterior and internal channel thoroughly after every use according to LELO's current instructions. Pay particular attention to removing lubricant residue from the internal channel and allow the device to dry completely before storage. Browse our Toy Cleaners for compatible options.

Is delivery available in Canada?
Yes. LELO F2S™ Double Sonic Masturbator is available from Source Adult Toys with delivery options across Canada.