1. Sound quality
Sound quality is a very critical point for speakers. For those of us who don’t understand speakers, buying speakers online may not hear the actual sound effects, but you can refer to the signal-to-noise ratio on the parameter table. It is recommended that you choose The signal-to-noise ratio is greater than 70dB, because the larger the signal-to-noise ratio, the stronger the anti-interference ability and the better the sound quality fidelity.
2. Bluetooth version
The Bluetooth speakers we buy are mainly connected by Bluetooth. The higher the Bluetooth version, the faster the receiving rate. The farther the distance is, the lower the power consumption of the speakers. The sound quality of Bluetooth speakers will also be better. There are currently 4.0, 4.1, 4.2, ..5.0 versions of Bluetooth on the market. When buying, try to choose the higher version if other parameters are the same.
3. Battery life
If it is an unplugged portable Bluetooth speaker or outdoor Bluetooth speaker, battery life is also a very important reference indicator. Generally, the longer the battery life, the better. Battery capacity=use time×device power÷battery voltage, so the larger the capacity, the longer the battery life. You can use this formula to calculate battery life.
I think the most important thing is whether it is waterproof, because long-term use of Bluetooth speakers will inevitably encounter water. It is best to choose a waterproof Bluetooth speaker. At the same time, take a look at other additional functions that you need.
5. Material modeling
My personal point of view is to choose a bluetooth speaker from a major manufacturer with guaranteed quality. Generally, there is no problem with the material. Regarding the shape, the current bluetooth speakers are various, and you can choose what you like according to your own preferences.