Two brands of headphones have different directions, one is headphones and the other is speakers. There are also many brands of Bluetooth headsets. I used the Shell Prince -Mo headphones myself, which cost more than 400 yuan. From the actual experience, the noise reduction effect is better than the headphones I used before. On weekdays, I always take the subway with headphones on, and I can't hear the car horn clearly without taking off my headphones on the roadside. If you pay special attention to noise reduction, you can try this earphone. Headphones are not expensive, the sound quality is good, and the delay in watching TV and playing games is low. As soon as the cover of the earphone charging bin is opened, it will automatically start and connect with the mobile phone, and the connection speed is very fast. The total battery life of the headset is over 20 hours, and the power consumption is no problem for one week. Headphones are still relatively small and can be carried around.