Which is more expensive, headphones or photography?

A camera, of course. Headphones, about 9000 yuan, are basically the limit. There is no need to play with high-end products, but you need to use Quan Huafu's camera, starting at 20,000, and changing the lens later, 40,000 may not stop. Although you can make money, it takes time and technology. You only need to invest in headphones once. It is especially recommended that you measure your ears. If the upper limit can only hear15000 Hz (more than 90% of people over 30 can only hear the upper limit 14000- 15000 Hz, which I personally sampled and tested), there is really no need to buy headphones with a price of 6000-8000 yuan, but only 2000-3000 yuan.