HOW TO USE THE PRODUCT WITHOUT THE APP Before first use, charge your F1S V2 for 2 hours. Press the center button for 1 second to turn it on. The LED lights will blink and show the battery charge level. The LED lights will turn a solid color and display the vibration level. Press the + or – button to adjust the vibration intensity. Press the center button for 3 seconds to turn it on. Press and hold the + and - buttons simultaneously for 5 seconds to unlock your F1S V2 and prevent it from turning on accidentally. HOW TO USE THE PRODUCT WITH THE APP Before first use, charge your F1S V2 for 2 hours. Press the center button for 3 seconds to turn it on while simultaneously activating Bluetooth. All LED lights flash simultaneously to show that it has been paired via Bluetooth. Open the F1S application and once you have received the confirmation message, press the button from the center to confirm. All LED lights will turn a solid color, indicating that the device has successfully connected. In case of connection failure, your product will automatically turn off in 30 seconds. The battery level and vibration can be viewed in the app. TECHNICAL DATA Material: Silicone, ABS and aluminum alloy Size: 143 x 71 mm Insertable: 110.72 mm Weight: 285 gr Battery: Li-Ion 850 mAh 3.7 V Charging time: 2 hours Usage time: 2 hours. Waiting; 90 days Suction motor frequency: 60 Hz Vibration motor frequency: 90 Hz Interface: 3 buttons. Characteristics: Flexible surface for intense pleasure. Softer and more flexible for greater comfort. Twice the power. More intense and far-reaching vibrations for endless stimulation. 4 unique patterns. With two stimulation motors and four specially designed modes. A wider range of sound intensities. Because you can never be too satisfied, weve increased the power for extra euphoria. Connected to the app. Connect your device to test it with the Lelo app. Explore control settings and analyze your performance from the apps perspective. SenTonic technology. The overwhelming sensation of sonic waves and patented Cruise Control technology make the F1S V2 the best way to show yourself some self-love. Completely submersible and rechargeable. With the included USB charging cable, you can take the ty F15 V2 anywhere, and its submersible design makes it very easy to clean.