Adult products that are hot and controversial on the Internet usually include the following categories: 1. **Smart sex toys**: These include adult toys with Bluetooth or remote control functions that can be controlled by applications. Although these products are favored by many consumers, some people are concerned about their privacy and security issues, such as data leakage or hacking. 2. **Sex dolls and robots**: High-end, realistic sex dolls are becoming more and more popular, and they have also triggered discussions on ethics and morality, especially when it comes to dolls with underage appearance. 3. **Health products**: For example, various supplements or drugs that claim to enhance sexual performance. Such products are hot in sales, but their effectiveness and safety are often questioned, and regulators in many countries conduct strict reviews of these products. 4. **Adult website subscriptions**: With the rise of streaming platforms, adult website subscription services have become very popular, providing high-resolution content and personalized services. Such platforms often cause disputes about content compliance and copyright. 5. **Products related to non-traditional gender roles or identities**: These products are designed to support and express diverse gender identities and sexual orientations, such as Binder, prostheses, etc. While welcomed by parts of the LGBTQ+ community, they have sometimes sparked opposition from conservative groups. The popularity and controversy of these products reflects society's complex attitudes toward sexuality, technology and moral issues.