Bluetooth 5.0 Wireless Earbuds, CRESOND CS007 104H Playtime IPX8 Waterproof TWS Stereo Headphones in-Ear Built-in Mic Headset Premium Sound with Deep Bass for Sport with 2600mAh Charging Case

  • 【EXCLUSIVE SOUND QUALITY】CS007 Wireless Earbuds features with the most advanced Bluetooth 5.0 technology ensures an incredible stable and swift Headset connection, together with personalized 6mm TWS earbuds endow a premium and fined-tuned music quality for you.
  • 【FULL-AUTOMATIC PAIRING】Completely automatic system gives you a hassle-free Headphones experience when pairing and connecting to your devices. All you need to do, take Wireless Earbuds out from the case and put them on, and you are ready to immerse in your music world, the rest just leave to auto. CRESOND CS007 Headphones instant pairing and connection make you feel everything are effortless.
  • 【104H PLAYTING TIME WITH PORTABLE CHARGING CASE】 The ultra-high-capacity of the charging case keeps you free from the anxiety even if you far away from home. The everlasting power allows you to unceasing enjoy the music for a whole month with 3 hours of daily use and no need for charging. Headset can also be used as an alternative power bank for your smart phones or other devices.
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Product Description

Bluetooth 5.0 Wireless Earbuds, CRESOND CS007 104H Playtime IPX8 Waterproof TWS Stereo Headphones in-Ear Built-in Mic Headset Premium Sound with Deep Bass for Sport with 2600mAh Charging Case : Product Description



What is the communication distance of Bluetooth?

Bluetooth has the concept of “Class.” Even with the same Bluetooth product, the strength of the radio wave differs depending on the class that is certified. That is, the communicable distance also changes.

Before you buy a Bluetooth product, make sure that you have the required class before purchasing so that it does not say, “The radio wave did not reach …”. There are three types of Classes 1-3.

Types of Bluetooth communication distance and communicable distance

One thing to keep in mind when choosing a product is that Class 1 devices do not always reach the maximum communication distance of 100m. For example, earphones with a communication distance of 20 m and microphones with a range of 50 m are also classified in Class 1. In other words, if the maximum output is “more than Class2 and within 100mW”, they are all equally classified into Class1.

As described above, even if the products are of the same class, the communication distance varies. If you want to focus on range, check the maximum output for each product.

Also, the intensity of radio waves that can be output differs depending on the country or region where the device is used. The upper limit is about 50 mW under the Japanese Radio Law, but not overseas. Besides, keep in mind that the distance may fluctuate depending on the performance of the receiving antenna and power amplifier, so it cannot be measured unconditionally.

How Bluetooth headphones connect to a smartphone?

Most wireless headphones use Bluetooth to communicate with the device, and in some cases, there may be a problem with the connection between the mobile app and the headphones.
If you are using wireless headphones with your mobile device, make sure your mobile device OS and headphone app are up to date.

Earphone-type wireless headphones are more susceptible to connection issues, such as broken connections, out-of-sync, and dropped calls than other wireless headphones due to their form.
In some cases, when communication is lost, your head itself is blocking the signal, which can be challenging to resolve.

Some headphone manufacturers say that updating the firmware may improve synchronization and other issues, but not all headphones.
Nevertheless, there may be solutions on the manufacturer’s website, including firmware updates, so you should check them out.

Of course, you need to keep your firmware up to date.

Pair with Mac (macOS) PC

  • step 1 Apple menu select [System Preferences] from the [ ] menu on the computer
  • Step 2 Select [Bluetooth]
  • Step 3 Set the headphones to the device registration mode (pairing mode).

Check that the main unit lamp blinks blue and red alternately, or that blue blinks twice consecutively.

Hold down the “power” button or “PAIRING” button on the headphones until the lamp on the central unit blinks (about 7 seconds).
There are the following two patterns for the lamp blinking.

The blue lamp blinks twice each time
Blue and red lights flash alternately
Refer to the instruction manual as it varies depending on the model.

  • Step 4 Select the [Connect] button to the right of [〇〇 (headphone model name)] displayed in the [Device] field.

* If you are asked for a passkey, enter “0000 (Zero Zero Zero Zero)”.
A passkey is sometimes called a passcode, PIN code, PIN, password, etc.

  • Step 5 Confirm that “Connected” is displayed under the headphone model name.

This completes the pairing process with the headphones.