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A USB Bluetooth audio transmitter is an electronic device that converts audio signals into Bluetooth so they can be streamed to wireless speakers or headphones. It works by plugging the USB part into a power source and connecting the audio output cable to the device that sends out the signal, like a CD player, and then pairing it with the receiving device.
When looking for a USB Bluetooth audio transmitter, one common type are the mini USB transmitters, which are small devices that can fit in the palm of a hand. Even though they are compact, they send powerful Bluetooth signals and have long-range capabilities.
Another typical kind is the USB stick transmitter, similar to a flash drive because of its shape. It can be plugged directly into most devices without needing additional cables or adapters.
Then there are the portable transmitters, which can be taken anywhere because they run on battery power.
Some transmitters also come with auxiliary cords that allow them to connect to other audio sources, such as a smartphone or tablet.
When choosing a Bluetooth transmitter, the range is one of the most important factors to consider because it will determine how far the device can be from the transmitter without losing signal. Typical ranges are around 30 feet (10 meters), but some high-end models have a range of up to 300 feet (100 meters).
Another important feature to look for is aptX low latency, which reduces the lag between audio and video, making it perfect for watching TV or playing games. Other codecs, such as AAC and MP3, also provide good sound quality.
Transmitting to multiple devices simultaneously is another feature that may be required. If this is the case, make sure the transmitter supports multi-connection.
Compatibility is also very important because it will ensure the device works with all the intended audio sources and receiving devices. Finally, battery life is an essential factor if the transmitter is portable, so it can be used for extended periods without interruption.
Transmitting analog audio signals over Bluetooth is the primary function of a Bluetooth transmitter. It converts uncompressed signals like CD quality and streaming music from online sites into compressed formats like AAC, SBC, or aptX to send them over Bluetooth.
When comparing a USB Bluetooth audio transmitter and implicit transmitters, the USB kind is versatile because it can be plugged into any device with a USB port. They include CD players, cameras, headphones, laptops, and computers. Implicit kinds can only be plugged into these devices if they have an available USB port. Other than that, implicit transmitters use batteries and thus can't be recharged while on use.
Another advantage of USB Bluetooth audio transmitters is that they can use power adapters to power them, so batteries don't have to be replaced as often. Note that some Bluetooth transducers power themselves from the device they're plugged into, while others need an external power source. They have to be powered constantly, so rechargeable batteries don't have to be changed often.
Transmitting devices usually have a 3.5mm audio jack that can be connected to a device whose audio signal is to be transmitted. This is to say that the transmitter can be connected to any device with an audio output, either a 3.5mm AUX cord or a USB port. Popular Bluetooth transmission devices are 4.0, 4.1, and 4.2, and they will allow connections with any audio receiving device like Bluetooth speakers or headphones.
When buying a Bluetooth audio transmitter, a buyer should ensure it has the latest version of Bluetooth, which is 5.0, as it provides an increased range, about 200 feet in open air, better speed, and improved battery life. Other benefits include offering two connection modes, i.e., it can connect to two devices simultaneously, and has better stability and fewer drop connections. A transmitter with Bluetooth 5.0 can connect to older versions without any compatibility issues. However, to enjoy the benefits of Bluetooth 5.0, the receiver must also support it.
Some USB audio transmitters have the ability to transmit and receive audio, which makes them multipurpose devices. They are updated versions that can be used as receivers to listen to music from a phone or tablet and a transmitter to send audio to a speaker or headphones.
Audio streaming to car stereo:
If a car model is older and the factory radio does not support Bluetooth, USB Bluetooth audio transmitters can come to the rescue. These transmitters can easily be plugged into the car's AUX port or USB port. When they are connected, Bluetooth devices like smartphones can be paired with them. Whether directions are being played on a navigation app or a favorite song is being streamed from music streaming apps, ease of Bluetooth connectivity to the car stereo is available. All that is required is to plug the device in and pair it with a phone.
Wirelessly Stream Music to Non-Bluetooth Speakers:
Bluetooth audio transmitters allow music to be streamed effortlessly to old speakers that lack Bluetooth capabilities. Connecting them is easy. A Bluetooth transmitter gets plugged into the audio output of a device, like a phone or laptop. Then, the transmitter links up with Bluetooth-capable speakers or headphones. Instant wireless connectivity is granted between the audio source and the receiving device, allowing music playback without cords connecting them.
Listening to TV Audio through Headphones:
Another useful scenario where Bluetooth audio transmitters are helpful is when someone puts on headphones and does not want others to know what they are watching. Transmitters come to the rescue again. USB Bluetooth audio transmitters can be plugged into the USB port of the television set. Headphones can then be connected wirelessly to the USB transmitter that is linked to the TV. People can then listen to programs quietly through their headphones while no one disturbs the earbuds.
Wholesalers consider various factors before buying Bluetooth audio transmitters. Here are some of the critical ones.
Q1: How long can a Bluetooth transmitter USB for audio be kept on?
A1: It is generally safe to keep a USB Bluetooth audio transmitter for a long time. However, users should turn it off sometimes to give it a break.
Q2: What is the difference between a Bluetooth transmitter and a Bluetooth receiver?
A2: A Bluetooth transmitter converts the audio signal into Bluetooth and sends it to a receiving device, like Bluetooth headphones. A Bluetooth receiver, on the other hand, receives Bluetooth signals from a transmitting device and converts it so that it can be played on speakers or a stereo system.
Q3: Does a Bluetooth transmitter improve sound quality?
A3: A typical USB transmitter for Bluetooth can actually enhance sound quality by eliminating interference and creating a stable connection. However, conscious quality protection is also vital. The receiving device, like headphones, has to be of good quality to retain the sound quality.
Q4: Why is LPCM better than SBC?
A4: LPCM provides lossless audio transmission, while SBC might compress audio, leading to a loss in quality. Many people prefer LPCM over SBC because of its clarity and high-quality sound.
Q5: Can a USB Bluetooth audio transmitter receive signals?
A5: No. A USB Bluetooth audio transmitter, like a USB transmitter for Bluetooth, can only send signals and not receive them. However, a USB with Bluetooth receiver capability can both receive and send signals.