Wireless Earbuds, YALFEN Bluetooth 5.0 in-Ear TWS Headphones with 2000mAh Charging Case LED Battery Display 80H Playtime, IPX7 Waterproof Built-in Mic HiFi True Wireless Earbuds for Work Sports

  • ♪♫【INTELLIGENT TOUCHING-CONTROL& ONE-STEP PAIRING】- Equipped with Automatic ON / OFF and Automatic Pairing functions, Pull out the earbuds from charging case and you can pair automatically by simply turning on your smartphone’s bluetooth. The earbuds also adopt the lastest touch-control technology without any physical button, Just touch the ear, music play / pause, volume control, call start / end / reject / next song / siri start / redial operation for all purposes.
  • ♪♫【ADVANCED BLUETOOTH 5.0+ EDR TECH】- Adopt the most advanced Bluetooth 5. 0 technology with acoustic echo and noise removal functions, can offer higher transmission speed and stable performance, and greatly improves communication performance. Bluetooth 5.0 technology enables you to connect the earphones to any smart device and with a working distance range of up to 33 feet. You don’t have to plug your phone in to listen to music or deal with annoying cords.
  • ♪♫【UP 80 HOURS PLAYTIME & 2000mAh CHARGING CASE】- Built-in 2000mAh rechargeable battery charging case, the earbuds can be charged anytime& anywhere. you can play for 8-10 hours on a single charge, portable charger box recharge can provide a total of up to 80 hours playback. It can also be used as a spare battery for smartphones. You can go out for fun without worrying about battery shortage, your needs are met from the start of the day to its end.
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Product Description

Wireless Earbuds, YALFEN Bluetooth 5.0 in-Ear TWS Headphones with 2000mAh Charging Case LED Battery Display 80H Playtime, IPX7 Waterproof Built-in Mic HiFi True Wireless Earbuds for Work Sports : Product Description



First, let’s start with “What is Bluetooth?”

Bluetooth is a wireless communication standard. Compatible devices can exchange data without connecting cables. The valid range is about 10m. Because it is an international standard, any compatible device can be connected by any manufacturer in each country.

Bluetooth mark
A person who says, “I can’t get right to the point …” may be more natural to understand if you listen to the examples. For example, imagine a Bluetooth earphone.

Until now, earphones were designed to insert the end of a cable into a smartphone or PC. However, if you connect a Bluetooth-compatible headset to your smartphone, you don’t need a rope. To wirelessly transmit music data from smartphones to earphones, Bluetooth earphones can also be used in independent shapes like earplugs.

Causes and Solutions for Losing Mobile devices Bluetooth Connection

When the smartphone is connected to the car audio system, the sound may be interrupted.

It is necessary to check whether there is any problem with the smartphone or car audio used. Still, it can be solved by ” clearing the cache” (for Android) with the smartphone or “deleting device information” on the setting screen In some cases.

In some cases, the file cached by the device OS update may be damaged, and the Bluetooth connection may not be appropriately established.

In that case, clearing the cache will remove the offending file, recreate the correct folder, and ensure a successful Bluetooth connection between your smartphone and car audio.

Procedure to connect Bluetooth earphone with Windows PC

1. Start pairing
First, operate the buttons on the Bluetooth earphone side to start matching.

The operation method differs depending on the earphone or speaker, so check the manual.

* Playing and stopping, power and volume are nothing, but you may start pairing by pressing and holding a relevant button.

2. Add device
Open “Devices and Printers” in Control Panel, and click “Add Device.”

Many people drop out without finding this. Now, click on this to start searching for devices.

When the Bluetooth earphone is detected automatically, the device installation will begin.

Windows now recognize the Bluetooth earphone as a playback device.

3. Priority output for Bluetooth earphones
However, with this alone, you will not be able to hear the sound from the Bluetooth earphone. As before, you will get out of the speaker.

This is because the speaker you have been using has priority over Bluetooth as the output destination.

Go to “Control Panel”-> “Sound,” right-click the icon that says “Bluetooth Audio Device,” and try “Set as Default Device.”

About behavior
With this setting, the sound of the Windows PC will be played from the Bluetooth earphone, but no sound will be output from the speaker.

Here, when you turn off the Bluetooth earphone, it automatically switches to output from the speaker.

Also, when you turn on the Bluetooth earphone again, the output to the Bluetooth earphone has priority still, and the sound output from the speaker stops.