Classification of HandsFree Devices

You can use your phone hands-free in a car in a variety of ways: by purchasing a headset, by installing a portable or full set s speakerphone. Each of the types of devices differs in the installation method, the principle of operation, the set of useful functions and, of course, the cost.

Headset- the simplest type of HandsFree device, as a result of which a speakerphone is installed in the car. Cable, microphone and headphones - the whole set of this type of device. For it to work, you only need to connect the headset to the phone using a cable. The head part of the headset can be different: either a combined earpiece-microphone in one block, or each device separately.

Portable kit is a speaker with an external microphone (in some models, however, only the standard microphone of the phone is used), which can be mounted in the cigarette lighter or other convenient place in the cabin. The headset communicates with the phone via wire or bluetooth. Devices of this type can be both universal, i.e. suitable for most phone models (for example, mr. HandsFree), and model.

Full set, for example, the Parrot brand, requires integration into electronic system car and installation in a car service. Thanks to this device, a wireless speakerphone is provided. For this, either the speakers of the stereo system or the standard speakers of the kit are used. In addition to the fact that the complete set provides excellent communication quality, it allows you to use the voice interface, automatic volume control of the audio system and other useful functions.

Installing a speakerphone in a car is a safety and legal requirement, not just a fad.

Speakerphone will become indispensable for those drivers who often have to communicate on a mobile phone when they drive vehicle. Its arrangement will minimize the number of distractions.

When driving a car, holding a mobile phone near your ear is not always possible (the effect is comparable to driving while intoxicated), and connecting headsets is not always convenient. To solve the problem, it is enough to buy speakerphone, which is devoid of all the disadvantages discussed above. Sometimes it is called "Hand free", which means "free hand". The phone connects to such devices via a Bluetooth connection, and the driver will not have to be distracted from driving the car to answer calls.

The device can be powered from the cigarette lighter or battery. In some cases, models perform several functions at once, while simultaneously being a holder for a mobile device.

How to choose a speakerphone

Although most devices Speakerphone are universal, it will not be superfluous to check their compatibility with the phone. If the purchase is made remotely, then you need to make sure that your mobile device is included in the list of equipment compatible with the Hand free system.

The next important indicator is the feature set. Here are just the most significant:

• Echo and noise suppression - improves the quality of communication when moving the car;
• The presence of a monochromatic or color screen - the driver will be able to see the subscriber's number, read messages, etc .;
• Voice recognition - the function allows you to give voice commands to the device;
• Phone Book Access - identification of the name and number of the subscriber;
• Possibility to use standard acoustic system;
• An authorized phone can connect automatically;
• The device is compatible with various models of smartphones;
• A2DP - use the system to listen to music from a smartphone;
• AVRCP - audio file playback parameters can be controlled remotely.

Shop "AutoProfi" offers various models hand free systems. All of our products are different high reliability and performance quality. And thanks detailed description choosing the optimal model is not difficult. Contact us! We will be glad to increase the comfort of your car trips.

In recent years, a very convenient option has gained great popularity - a speakerphone in a car for a phone. Thanks to this system, it is possible to synchronize a mobile phone with the car's multimedia system, so that it is possible to have a conversation using the car's standard speakers in hands-free mode.

What are the advantages and disadvantages of such a system and is it possible to manufacture it yourself on machines in which it is absent - we will talk about all this in this article.

The history of the appearance of a speakerphone in a car for talking on the phone

The reason for the appearance of hands-free systems for the car was, of course, the tightening of legislation regarding the use of mobile telephones while driving a car.

The fact is that the legislation of most countries of the world prohibits the use of a mobile phone while driving a car, allowing only a conversation using Hands Free systems without the use of hands. It is for this reason that the engineers had the idea to integrate telephone functions into a multimedia system.

Technically, such a refinement looked very simple. Indeed, the car audio system includes the main component - speakers capable of reproducing sound. Embedding a microphone and interfacing with a phone is a matter of minor technical and software integration, and the benefits of the option turn out to be quite a lot.

The first hands-free systems in the car were synchronized with the telephone via a wire through the radio. Later, with the development of wireless technologies for voice and data transmission via the Bluetooth protocol, multimedia systems they began to use this wireless channel for synchronization, and the appearance of modern displays in radio tape recorders made it possible to use them not only for transmitting voice data, but also for reading text messages received on the driver’s mobile phone.

Video - how to connect a speakerphone through a head unit in a car Nissan Tiida:

Today, systems for integrating smartphones and on-board multimedia are highly developed. The car's audio system is capable of supporting the full range of functions of a modern mobile phone, including voice communication, Internet access, use of Internet messengers, etc. In this case, in the event of an incoming call, the sound of the audio system is automatically muted, but after it ends, music playback resumes.

Speakerphone in the car through the radio with your own hands

Of course, the speakerphone system in the car is a very convenient thing. However, this option is not provided in all cars, at least in the standard version. At the same time, dealers very often offer this option for a surcharge, which can be from 20 thousand rubles or more. It goes without saying that such an overpayment often turns out to be unprofitable, and many car owners deliberately refuse additional costs.

However, in fact, you can organize a speakerphone in a car for a phone with your own hands with minimal cost. So, let's see what opportunities exist for organizing hands-free communication in a car on our own.

Perhaps the simplest in terms of technical organization it is worth considering the wired connection of a mobile phone with a radio tape recorder. You can organize it very easily, provided that your car radio is equipped with an AUX connector. In fact, this connector is a traditional 3.5 mm headphone output for the corresponding plug, familiar to all owners of audio players, and mobile phones as well.

Nowadays, almost all cell phones have the same connector for connecting a wired headset or regular headphones. So, if your car radio is equipped with such an output, and it is also present on your mobile phone, then we can assume that the problem has been solved.

All that is required to organize a speakerphone in a car through a radio tape recorder with your own hands is to purchase a jack-to-jack wire with a pair of 3.5 mm jacks, the same as used in headphones. Similar wires can be found in almost any electronics store.

By connecting the phone and the radio using such a wire, we get a working speakerphone system. Its only drawback is that to answer the call you will need to press the button directly on the telephone, and the telephone itself will be connected by a wire to the radio. In addition, during a conversation, the microphone located inside the phone will be used, and therefore the audibility for the interlocutor may deteriorate.

Much more difficult if the radio is not equipped with the appropriate connector. In principle, at this stage, many motorists may abandon the idea of ​​\u200b\u200borganizing a speakerphone, however, with some skills in working with electronics and knowledge of circuitry, you can try to make the system yourself using commercially available components.

There are two ways here - install the AUX connector in the radio yourself, or go the more complicated way and set up a wireless circuit that works, like factory counterparts, using the Bluetooth wireless data transfer protocol. The last option only seems complicated, but in fact it turns out to be even simpler than the first option. So, let's see how this can be organized.

The first option would be to purchase and install a factory hands-free kit. Such a set consists of a wireless module, a microphone and a speaker, or outputs for integration with the speakers of an audio system. The connection scheme of the device depends on its technical features and is carried out in accordance with the instructions and diagram attached to the product. The price of such a module is about one, two or three thousand rubles.

There is another option that is suitable for electronics lovers. You can make a wireless speakerphone in a car with your own hands, taking as a basis ... a regular wireless Bluetooth headset. This will require, in fact, the headset itself (an old workable product is quite suitable), as well as an old non-working radio receiver, which can become a “donor” for spare parts, including, for example, a TDA7385 ULF chip or similar.

Conventionally, the scheme can be divided into four main blocks:

1. Directly the headset, which displays contacts from the speaker, microphone and power. In the case of the output of contacts from the power supply, the built-in battery is dismantled.
2. ULF scheme. It is better to use a chip that has standby and mute outputs, which will make it possible to control the current consumed by the device.
3. The power supply, the manufacture of which should be approached very responsibly. It should be remembered that standard telephone headsets are very sensitive to power, and an increase in voltage can easily disable the device, and you will not be able to restore it.
4. An automatic control unit, whose task is to monitor the signal at the output of the former headset and close the low power relay, which will supply voltage to the input that muffles the sound of the radio, as well as to the “standby” and “mute” VLF connectors in order to turn on the speakers.

The constructed device allows you to use all the functions of a wireless headset with "binding" to car radio. That is, the phone is synchronized with the headset according to the standard scheme, but the voice is transmitted not to the headset, but to the speakers of the radio.

Video - speakerphone to the car through the radio with your own hands:

In addition, the headset microphone can be extended and placed in any convenient location as close to the driver as possible. Accordingly, the voice quality will be at a high level.

Of course, many readers will ask whether it makes sense to go to such difficulties. Perhaps the answer to this question is yes only if you have the necessary components and an old, unused, wireless headset. Otherwise, buying a ready-made hands-free module will cost even less, not to mention a much simpler installation scheme.

Results

As we can see, it is quite possible to make a speakerphone through the radio in a car with your own hands. In some cases, such design changes are justified. However, do not forget that these tips are suitable, first of all, for owners of used cars.

In the case of a new car, we would like to warn owners against this kind of “improvements”. This is due not only and not so much to technical difficulties, but to the issue of a guarantee for a car.

At least three (!) hours a day, an ordinary middle manager talks on the phone. That's the statistics. This figure increases as the status of the subscriber changes. The higher the position and the more active the lifestyle, the more negotiations a person conducts. On a par with mobile phone an integral attribute in a modern dynamic society is. And very often the call gets stuck. Well, if the call can be postponed. But if on the other end of the tube is a business partner or a teacher from the child's school? Today, picking up the phone while looking away from the steering wheel is both unsafe and illegal. An accident and a fine may threaten the subscriber. What is the way out? Speakerphone in the car - that's what will allow you to communicate "hands-free". We are talking about systems from the "Hand free" series. About which hands-free device for a car is best for you - in our material.

Hand free solution

Let's start with the fact that you can choose a hands-free kit in a car of several types, depending on the method of transferring the conversation. So, you can connect through an additional built-in speaker or through the "native" speaker system of the machine.

When choosing a “Hand free” device, keep in mind that depending on the configuration, there are different options for displaying information. For example, some devices are equipped with a special display where phone book data and incoming numbers are visible. And the attached remote allows you to fully manage contacts and calls.

The hands-free system for can be connected in various ways. In some cases, special adapters are used. And there are gadgets that are attached without any wires, for example, directly to the steering wheel.

It must be said that in many the manufacturer provides a standard “Hand free” system, which can be connected via Bluetooth. But while this is a feature of expensive cars.

Many hands-free devices are based on Bluetooth (R) technology, which allows voice data to be transmitted wirelessly.

Hello! What to choose?

Hands-free headset for a car can be very diverse. When choosing a device, remember what you need first of all check if it will work in duet with your mobile phone. After all, there are incompatible models. And even the presence of Bluetooth does not guarantee that you will painlessly connect to the desired system.

Installing a speakerphone in a car does not take much effort and time. The main thing here is to estimate your requests, financial capabilities and decide on the device option.

"Snail" on charge

The simplest and most commonplace option is a wireless headset. As they say, cheap and cheerful. Everything here is simple and does not require serious costs. It looks like this: The microphone and earpiece are built into the "snail", which is easy to put on the ear. Such a device is controlled by pressing buttons that adjust the volume and receive a call. By the way, the "snail" can be used anywhere outside the car. The headset is charging. And such joy costs from 300 rubles.

Voice over…radio

There is such a feature as a speakerphone - it looks like a mobile phone itself, but it only works to distribute sound. Such a device can work both on charging and from the cigarette lighter. There are models with an FM modulator that allow you to broadcast sound through radio frequencies. The cost is from 650 rubles.

Smart Head Units

You can set up a speakerphone in the car using Bluetooth head units. Such systems are connected directly to the acoustics of the car. It has a display and control buttons. The operation of the head unit is built in such a way that when you call a mobile, the music that is played in the cabin automatically becomes quieter. True, you will need to install a special microphone near the driver.

So, such devices are assembled from three blocks: an external microphone, a connection block and a control block. Particularly "fancy" versions of such devices are controlled by voice commands. Price - from 1000 rubles.

Full set

Handsfree installation kits are the most expensive and effective option. Having bought such a device, you will be able to choose how to broadcast the conversation: through an autonomous speaker or a standard car system. Monitor or remote - you choose how you want to control it. The music will automatically turn off when you make a call. By the way, some models have options that allow you to listen to melodies stored in your mobile phone. You will have to pay at least 2000 rubles for such a gadget.

call with a plus

The hands-free system for a car in a modern design can be equipped with a number of additional options. What, for example? Let's take a display. It can be color or monochrome, it displays not only phonebook data, but also messages. Hands-free systems have been added with the ability to suppress noise, speech recognition, transfer photo files, connect different models tubes, etc.

Hot Selling

Installing a speakerphone in a car is a responsible matter. And it is better to choose a budget, but high-quality option. Note that valued Parrot products. Gadgets of its production respond to voice commands and are able to “merge” with the “native” steering buttons of the car. Parrot has three lines of "hands free" cars: MiniKit, CK and MKi.

MiniKit is the basic version. It offers easy-to-install and operate devices. For example, "clothespins" or a phone holder.

CK products are "sharpened" for machine integration.

The most advanced line is MKi. There is a whole set of fashionable options for "Hand free": voice control, phone book with output to the display, display of incoming. By the way, such devices are able to show not only the subscriber's number, but also his photo.

Don't talk too much!

Which speakerphone to install in - you choose yourself. But remember that "hands free" is not a reason to relax behind the wheel. After all the conversation itself can distract the driver's attention. Take care of yourself and do not abuse conversations on the road!