The We Vibe Sync has a different shape than the last couple of versions and there are two points that are adjustable to make the most comfortable fit for you. There is an updated remote that goes 9 meters and a smartphone app to make long distance play possible! You can also make custom patterns and control the internal and external portions separately.The Sync version of the app has two more settings than before. Made of 100% silicone and waterproof. The included case helps keep your toy dust free. A two hour charge gives you 90 minutes of vibration. This We Vibe toy has a two year warranty.