Connected Dual Motor Sound Wave Automatic Masturbator — F1S V3 Red

The red version of the third generation Lelo F1S, featuring the same SENSONIC technology that made the model famous — a second motor that sends low-frequency sound waves through the silicone sleeve, in addition to classic vibrations. Matte black casing, transparent window revealing the bright red sleeve inside, Bluetooth app to control both motors independently.

SENSONIC: Sound waves that penetrate matter

This is the signature feature of the F1S. A dedicated second motor sends low-frequency acoustic waves (perceived by the body, not the ear) into the silicone that envelops the penis. Where classic vibration stimulates the surface, these waves penetrate deeper — you feel them inside the glans and all along the penis, like an internal massage. Mechanical vibrations are still possible on their own, but combined with the waves, the result takes it up a notch.

Ten internal sensors that adapt stimulation to your rhythm

The sleeve integrates ten SDK sensors that measure in real time the pressure you exert, the cadence of your movements, and the speed of the back-and-forth motion. The Lelo app displays this data during the session and allows you to choose a mode that automatically reacts to what you're doing. Cruise Control mode maintains stable intensity even when you tighten your grip — practical for edging for a long time without losing tension.

Bluetooth app with personal profiles and two independently controllable motors

Via the app (iOS/Android), you can adjust vibration and waves independently: all waves, all vibration, or both at different intensities. You can save your favorite settings to find them from one session to the next instead of starting each time with a factory preset. Manual mode is accessible directly on the casing via the physical buttons if you want to turn off the app.

Removable medical silicone sleeve and magnetic charging

The red sleeve can be completely removed from the casing for a thorough rinse with lukewarm water — non-porous medical silicone, easy to sterilize, which does not become sticky over time. The casing recharges via a magnetic connector (cable included), you plug it in, wait, and it's ready. Soft-touch matte finish that stays in hand even when things get slippery.