Elva has 5 different modes, and 5 intensities in every mode, so you have 5 x 5 = 25 + 1(intelligent mode)=26 selections. more ways for you to explore.powerful vibrationdespite of elva's small size, the motor inside of her silicone body still lives up to your strongest desires. 5 different intensities, from weak to strong, which one is your favorite?waterproof Designelva is designed with pinhole charging port, that make it completely waterproof. do it in the shower, in the bathtub, or in your swimming pool, wherever you pleased.svakom intelligent modeelva has a svakom intelligent mode which highly imitates the vibration frequency in the whole process of sex from the beginning to orgasm. single-click the s button, you can start a wonderful sex journey. from bashful foreplay, sexy teasing, strong pulsing, to multiple climaxes, it's a heavenly sex experience you don't want to miss.whisper quietsvakom only uses the highest quality motors, delivered from the best manufacturers. this is how we know that our motors are powerful , quiet and have a long life span. billy's voice is under 50 db after it's turned on, you can barely hear anything from beyond 1 meter distance.intelligent remote controlelva can be used with and without the remote control. with the remote control, this will increase the interaction between you and your partner. it is more convenient to change mode and intensity by the remote control if you are using the product yourself.g-spot & clitoris stimulationluxurious, ergonomic designed, billy is a vibrator with beautiful look, and also with great efficiency in improving the quality of womens sex life. * svakom intelligent mode* 26 different frequency experiences* intelligent remote control* pinhole charging, waterproof design* designed with a string, convenient to use* small size, easy to carry along for traveling* rechargeable* whisper quiet