The male masturbation audio device is a type of masturbator specifically designed for male users, providing auditory stimulation through built-in audio devices to enhance the user's sexual experience. In this field, there are many important patents covering different aspects of technology and design. Here are some of the key patents:

1. Sound simulation technology patent: These patents involve how to simulate realistic sound effects to provide a more authentic experience. By using advanced sound processing technology and audio devices, more realistic sound effects can be achieved to enhance the user's sensory experience.

2. Vibration technology patent: Vibration technology is a common feature in masturbators, providing more intense stimulation and enhancing pleasure through vibration. Related patents cover how to design and control vibration devices to achieve different vibration patterns and intensities to meet the varying needs of users.

3. Remote control technology patent: Some masturbators are equipped with remote control functions, allowing users to control the device's vibration and sound effects through a phone or other device. Related patents involve how to implement remote control functions, including communication technology, data transmission, and security aspects.

4. Smart technology patent: With the development of artificial intelligence and Internet of Things technology, some masturbators also have smart functions that can provide personalized experiences by learning user preferences and habits. Related patents cover how to implement smart functions, including data analysis, algorithm design, and user interface technology.

5. Design patent: In addition to technical patents, design patents are also important in the masturbator industry. Design patents cover aspects such as appearance design, structural design, and material selection, protecting the product's appearance and shape to enhance its market competitiveness.

Overall, the field of male masturbation audio devices involves multiple aspects of technology and design, with patents covering sound simulation technology, vibration technology, remote control technology, smart technology, and design. The protection of these patents can promote industry innovation and development, improve product quality and user experience, and also protect the interests and market position of companies. With the continuous advancement of technology and evolving user needs, patent protection in the masturbator industry will continue to play an important role in driving the industry's healthy development.