What Is a Portable Speakerphone?

Car phones generally have functions such as making and receiving calls, sending and receiving text messages, caller ID, Internet access, digital dialing, address book, call management, setting time and date, etc. Some car phones are multi-frequency or dual-frequency, such as Motorola 8989, M930, Other car phones also have Bluetooth capabilities: such as Nokia 616, Nokia 810.

Car phone

Car phones generally have functions such as making and receiving calls, sending and receiving text messages, caller ID, Internet access, digital dialing, address book, call management, setting time and date, etc. Some car phones are multi-frequency or dual-frequency, such as Motorola 8989, M930, Other car phones also come with

Strong signal. As we all know, the signal strength of mobile phones and operators for their mobile communications

China has now entered the era of very popular mobile phones. According to the latest statistics from the Ministry of Information Industry 2009-1-28, as of December last year, the number of mobile phone users nationwide reached approximately 547 million, with a penetration rate of 41.6%. Faced with such a high penetration rate of mobile phones, let's talk about the necessity of car phones relative to mobile phones and the advantages of their products. First, the signal is strong. As everyone knows, the signal strength of a mobile phone is closely related to the transmit power of an operator to set up a base station for its mobile communication network and the distance between the mobile phone and the base station. In relatively closed places such as elevators, trains, and underground passages, the obstacles that mobile phone signals have to pass through will also increase the signal strength of mobile phones. The car phone can be connected with an antenna that enhances the signal, so that the call is basically unblocked. Second, low radiation. When people use a cell phone, the cell phone transmits radio waves to the transmitting base station, and the radio waves are more or less absorbed by the human body. These radio waves are the radiation of the cell phone. These radiations have the potential to alter human tissue and adversely affect human health. The car phone uses an external antenna, and the external antenna is placed at a distance of at least one meter from the human body, which greatly reduces the harm to the human body caused by radiation. Third, the use of car power to ensure the continuity of the call. When we use a mobile phone, we often encounter a situation where the mobile phone is out of power when receiving a call, which inevitably brings inconvenience to the caller. The car phone uses the car's power supply. As long as the ignition switch is turned on and the car battery is charged, it can ensure that no power outage or disconnection occurs during a call, and the trouble of recharging is also saved. If you need to use it outside the car, you can also choose a portable backpack phone with its own battery. Fourth, the call quality is excellent. Although many mobile phones now have a hands-free function, the volume is not perfect. The car phone is equipped with an independent high-power speaker, and the other party's voice can be transmitted from the car stereo through the wiring, so that users can obtain a high level of business-grade call quality. 5. The distinguished appearance design is a symbol of user identity. Car phones usually have a large keypad, which is very convenient when dialing in the car. Some car phones also have the function of voice dialing and voice commands, which allows you to control the phone by voice, without having to press the numeric keypad. Driving safety ^[1]

Before using a car phone, you need to pay attention to the following:

When the car ignition switch is turned on, the car phone is automatically powered on.

When you turn off the ignition switch of the car, the interactive phone will not automatically cut off the power; it will delay the power off according to the set power off delay time.

Regularly check your car phone to ensure that it is properly installed and working properly. To use a car phone, a valid SIM card must be inserted.

To lift the handle from the handle holder, hold the bottom of the handle and lift it up gently

Difference between car phone and car Bluetooth hands-free phone system

There are two main types of car communication products on the market: car phone and car Bluetooth hands-free phone system (referred to as car Bluetooth hands-free). The main difference between the two is that car phones need a SIM card, while car Bluetooth hands-free does not. Car Bluetooth handsfree is to use Bluetooth to pair with a mobile phone and start communicating.