How Earbuds works?

July 22, 2021 Brian 285 Comments

Last Updated on September 25, 2024 by Brian

How Earbuds works?

Wired headphones are connected to devices via a wire, through which the signal transmits. In wireless sets, the principle of operation is the same; only the signal is transmitted through the air using radio waves.

Depending on which transmission principle is used, there are several types of units. The most common ones today are Bluetooth headsets (regular and TWS) and radio earphones.

The principle of operation of wireless gadgets is easiest to understand using the example of radio Earbuds. They have their base with a transmitting antenna. Wires usually connect this base to an outlet and a broadcasting device such as a computer.

The headsets themselves have a receiver that can pick up a transmitted radio wave at a specific frequency. For this receiver to be able to receive the signal continuously, it needs power.

Therefore, there are batteries into the radio earphones charged from the mains, their charging station, or a suitable source such as a PC. Such units are usually bulky and poorly protected from interference, but their range of action can be tens or even hundreds of meters, and the signal can pass through walls.

Moreover, in Bluetooth sets, a device with a Bluetooth transceiver acts as a translator. It can be a laptop, smartphone, tablet, or another device. The headsets have a Bluetooth receiver that picks up the radio wave from the transmitting device.

It also requires energy to work, so gadgets of this type also have a battery in the headphone case or neck strap. After turning on the headphones, their Bluetooth module starts automatically, and in standby mode, it consumes much less energy than when the gadget is operating.

A Bluetooth connection works at shorter distances but has better sound quality and better immunity to interference than radio headsets. In addition, one of their primary qualities for wireless sets is mobility.

It is enough to have a smartphone at hand to listen to music. It is equally essential that the devices are connected via an encrypted channel, and each of them has its identification numbers.

Additionally, in radio earphones, it is enough to join the base with the antenna to the device and turn on the sets themselves, and then the Bluetooth units need to be paired with the device.

It is the process by which the phone (or another device) detects the earphones and allows them to connect to itself (permission is often accompanied by you pressing the “Confirm” button on the phone).

Conclusion:

Today’s most popular Bluetooth Earbuds are so small that you can quickly put them in a pocket or purse. Although there are also large models, some operate in two modes (via wire or Bluetooth).

So that the devices can work more without recharging, the developers have come up with miniature charging cases for them, which you can also carry with you.

The essence of their work is as follows. The case has a built-in battery that replenishes energy from a suitable source (a Power Bank, laptop, tablet, etc.) via a USB cable.

There are charging contacts inside the case and on the headsets themselves. When you place the Earphones into the jacks of the case, the contacts touch and charging begins (in many models, automatically).

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