Choosing the best wireless pinhole camera for your needs can be a challenge, as there are many factors to consider. Here are some key points to help you make an informed decision:

1. Purpose: Determine the purpose of the camera and what features are most important to you. For example, if you're using the camera for home security, you may want a camera with motion detection and night vision capabilities.
2. Video quality: Consider the video quality you need. If you're using the camera for surveillance, a high-definition video feed may be necessary.
3. Range: Consider the range you need for the camera. Some cameras have a range of several hundred feet, while others have a more limited range.
4. Compatibility: Make sure the camera and receiver are compatible and can work together to provide a clear and stable video feed.
5. Price: Consider your budget and choose a camera that fits your needs and budget.
6. Additional features: Consider any additional features you may need, such as the ability to remotely control the camera's pan and tilt functions, or built-in motion detection.
7. Privacy and legal considerations: Familiarize yourself with the laws in your area regarding the use of cameras, especially in private spaces like bathrooms and bedrooms.

By considering these factors, you can choose the best wireless pinhole camera that meets your needs and provides the features and quality you're looking for.