Lelo F1s Developer's Kit Red Masturbator

The world's first SenSonic sextech console for men is here! Featuring 10 sensors and a LELO app to track your progress - and prowess - the F1s is one giant leap for mankind.  

Through its unique dual-motor design, the F1s Red combines conventional vibrations with an entirely new sensation never before experienced in a male pleasure product: SenSonic™ technology.

It’s the same high-tech concept that made the LELO SONA™ the world’s bestselling sex toy of all time. Instead of standard vibrations, one of the motors emits powerful sonic waves that permeate deep into your penis, making it feel as though it’s resonating pleasurably from all directions all at once, instead of simply tickling the nerve endings on the surface of your skin. It will help you achieve the most overwhelming orgasms of your life.  

Combined with the patented Cruise Control setting, which ensures F1s never experiences a frustrating power drop during vigorous use. Instead, it intelligently monitors and controls the intensity to ensure you get a completely seamless, uninterrupted experience.

Thanks to its unique dual-motor design, the F1s combines conventional vibrations with sonic waves or SenSonic technology. In addition to standard vibrations, which tingles the nerve endings of the skin's surface, one of F1s' motors emits powerful sonic waves that penetrate deep into your penis, pleasuring your penis from all directions at once. Sonic waves plus vibration will help you achieve the most deep and overwhelming orgasms of your life.

The Cruise Control setting ensures that your F1s will never experience a power drop during vigorous use. Instead, the masturbator will monitor and intelligently control the intensity of the sensations so that it never drops in power. Hands-free play can also be achieved with Cruise Control.

F1s can be connected to your smartphone via Bluetooth. Use the free app on iTunes or Google Play to control your masturbator, create your own sensations, and track your progress through the 10 sensitive and internal sensors. See all of your statistics (temperature, pressure, how many vibrations you experience, or hand the controls to a partner for a new dimension of couples play.

The freely available Software Developer’s Kit (SDK) gives you the opportunity to build an app of your own to fully capitalize on F1s' technical capabilities, such as linking it to games and programming in their own choice of vibration and intensity patterns.

An open window panel in the casing allows you to watch your pleasure and penis in action. 

F1s' ergonomic premium textured aluminum alloy (and ABS material) body has a simple 3-button intensity controls for one-handed use. It's body-safe silicone internal canal and curved internal groves provide heightened sensations. 


  • Masturbator with sonic waves and vibration
  • 2 powerful motors and 10 performance sensors
  • Never loose power with Cruise Control
  • Access the developer's kit to experiment with sensors and sextech
  • Remote controlled with the free LELO app
  • 100% waterproof IPX7
  • USB rechargeable - 2 hours of use with 2 hour charge time
  • Open window panel in the casing
  • Includes storage pouch, toy cleaner, don't disturb sign, and gloves

Material: silicone; abs; alloy
Size: 14.3*7.1*7.1cm
Insertable length | 4.35"
Weight: 615g

lelo f1s features
lelo f1s specifications

Colecciones: All Sex Toys, Male Sex Toys, Masturbators