Usually, Cat Ear FM allows multiple users to log in to an account at the same time, which means that many people can use the same account at the same time and enjoy audio content on different devices. If you want to restrict only one person to log in, you can take the following measures:
1. Don't share your login account with others: Make sure that your account information is only known to you, and don't share it with others. This will prevent others from logging into your account.
2. Change your password regularly: If someone knows your password, you should change it immediately. It is also recommended to change the password regularly to increase the security of the account.
3. Use strong password and double authentication: In order to protect your account security, you can use strong password and enable the double authentication function provided by Cat Ear FM.
If you have other needs to protect the security of your personal account, I suggest you contact Cat Ear FM customer service or consult the relevant user guide for more detailed help.