Lifeguard ™ is a vibrating ring for couples, coated with flexible silicone to fit all sizes and provide amazing pleasure (and more firmness!). you will both enjoy the strong external vibrations and can play with the 6 remote stimulation modes. all you have to do is download the remoji ™ app, activate bluetooth® and lifeguard ™ will make sure sex doesn't go away. ultra-strong vibrations distributed over the entire surface. elastic and flexible ring for firmer erections. controlled by the app on mobile devices, for an addictive shared experience and more fun. 6 variable modes at a distance of 12 meters. 100% submersible and fully usb rechargeable for added versatility - press the picobong toy button once to activate bluetooth - when bluetooth is activated, a light will flash on your picobong device - launch the remoji app on the device mobile you will be prompted to allow the app to activate bluetooth on your mobile device and sync with your picobong toy. - wait a moment for the mobile device and the picobong toy to synchronize. after synchronization, press the play button on the mobile device. - change the speed and vibration patterns. - press and hold the button to turn off the picobong.