Bluetooth speaker purchase
Release time:
2023-11-22 08:18
Compatibility
Although the compatibility of Bluetooth speakers basically supports existing Bluetooth devices, it is still necessary to check whether your playback device supports Bluetooth before buying it.
Transmission distance
The transmission distance of the Bluetooth speaker is also a problem that everyone is more concerned about. The transmission distance of the Bluetooth speaker has nothing to do with the Bluetooth version, and mainly depends on the advanced level of technology. The standard transmission distance of the PowerClass2 is 10 meters; the upgraded PowerClass1 increases the transmission distance to 100 meters and provides a Hi-Fi stereo effect. Generally speaking, the distance between the mobile phone and the Bluetooth speaker is not too far, and the relatively safe transmission distance is about 10 meters. Market Bluetooth speakers are up to 10 meters standard.
Version
When consumers purchase Bluetooth speakers, they often see numbers Bluetooth 1.1, 1.2, 2.0, 2.1, 3.0, 4.0, etc. These numbers represent different versions and also represent the anti-interference ability of Bluetooth speakers. In 2012, 2.0 is the most common and 3.0 the new mainstream, while 4.0 has just been launched. Bluetooth version is different, related to the quality of the received signal. The new version emphasizes the ability to overcome noise interference. The new version can be backward compatible, consumers should measure the price and demand when purchasing.
Built-in battery
Bluetooth digital speakers are built-in battery, so that the real wireless. The good and bad of the built-in battery directly determines the playing time and service life of the Bluetooth digital speaker. Please ask carefully before buying the actual playing time and the number of repeated charging decay. It is recommended that consumers choose bluetooth speaker as far as possible to choose polymer lithium battery, no explosion hazard.
Battery type:
1) Polymer battery
Advantages: safe and efficient, soft package without explosion hazards.
Disadvantages: miscellaneous types, pure cobalt (good) and pure manganese (poor) polymer battery price difference several times.
2)18650 battery
Advantages: excellent performance, charge and discharge can reach the upper level (mostly used for notebook batteries), explosion-proof protection
Disadvantages: disassemble the battery and the old battery more. The same 18650 battery good and bad price difference 5-10 times
3) Aluminum shell battery
Advantages: the price is very cheap
Disadvantages: poor performance. Without any explosion-proof measures, the consequences of the explosion are unimaginable.
battery protection board:
1) The charge and discharge protection of the battery protection board of the miscellaneous brand battery is relatively poor, and the battery core and electronic equipment are easily damaged due to instability.
2) Unstable current output not only affects the sound quality, but also causes a lot of current sound.
A good quality battery can reach 80% of the initial capacity after 500 times of charge and discharge. The poor quality of the battery charge and discharge 100 times even less than 50% of the initial capacity.
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