Many customer always compliant that their earbuds will out of connection. and can not turn on.

Another bad use feeling is that the tws earbuds will have different sound from the two speakers. The left and rigjht speaker sound different.

Above problem was made by bad and low quality speakers, another reason is that the workers forget to pair the two earbuds when they inspect it. 

Now, we slove this totally. We are professional tws earbuds manufacturers, we keep invest on buying test machine to improve the quality. 

All the test process was done by machine, every earphone, headset, headphone will be test and paired. 

Now, let me show you something about RF and audio test. If you are professional buyer, you will know it. 

RF testing is a way to check the frequency of your earbuds to ensure that they are using the same frequency and let the right and left earbuds paired and connection autoamtic.

Now, show you what is Audio test.

Audio testing is a way to check the sound of speakers in earbuds, to keep the speaker sound and frequency are in same level.Then, you will hear the same sound by left and right earphone.

So, why not choose to be your partner. We enle will be your best supplier in TWS Bluetooth wireless field. We focus on research stable quality, long endurance earbuds and earphone. 

There are over 20 QC and 10 machine check the products quality and keep all in high-end level before shipping.  Also, we supply after-sales service. 

There are 1-2 new modeles in every 3 months. Support deep oem and odm service. There are vious models for your choose, active noise canceling, anc, enc,bone conduction, open ear style headphone headset.

Choose the one you like, and send us inquiry.