[Custom frequency] Customize to create your own frequency, you can upload custom frequency to provide download.
[Slide operation] Fingertip sliding control vibration frequency, measure your hand speed.
[Music mode] Let the music control the vibration frequency, there is always an unexpected surprise.
[Shake mode] Shake the phone to control the frequency, especially suitable for outdoor play.
[Add partner] Search and add by each others nickname or email.