Micro USB 2400mah Large Batter 30ft Portable Mini Bluetooth Speaker

Micro USB 2400mAh Large Battery Portable Bluetooth Stable Speaker

1. Mini appearance, light and portable;

2. Bluetooth pairing makes listening to music more convenient;

3. Freely switch to answer mobile phone calls;

4. Configure smart music alarm clock wake up function, LDE screen time display;

5. Tap the digital volume to adjust;

6. Touch the light, adjust the brightness freely, multiple light modes, can be used as a desk lamp;

7. Stereo sound, sensory experience;

8. Support TF card music insertion function, compatible with multiple music formats, and listen to the music you want at any time;

Description

Bluetooth speaker

Bluetooth technology is not only used in computers. Many electronic devices, such as mobile phones, digital cameras, camcorders, printers, fax machines, and home appliances, can use Bluetooth technology to achieve wireless connectivity without having to drag a tail (connecting line). With the popularization of Bluetooth technology, home furnishings no longer worry about wiring of electrical appliances; when using home appliances, you don’t have to worry about a large number of remote controls. You can do everything with a mobile phone or a car key. The company's work arrangements and the pictures of family members at home can be obtained anytime and anywhere; there is no need to queue up for check-in and payment, pass near the payment point, and can be easily completed without entering the door. The wide application of Bluetooth technology will make our life extremely easy.

Bluetooth speakers are mainly portable speakers, which are generally small and portable. Bluetooth speaker technology has gradually been valued and accepted by consumers due to its convenient characteristics. Common Bluetooth speakers on the market are mostly mono speakers (single speaker unit). At the same time, some multi-channel speakers (two or more speaker units) with excellent sound quality have emerged.

Difference

1. Function

The Bluetooth speaker uses the Bluetooth wireless connection method that we are very familiar with. It requires a mobile phone + speaker to realize audio playback. Once it is separated from the mobile  phone, it cannot be used independently. For example, after the Bluetooth speaker is paired with the mobile phone, it takes over the audio playback of the mobile phone, and all sounds of the mobile phonewill be emitted by the Bluetooth speaker.

The smart speaker uses the WI-FI network connection method, which can play various audio and video independently after being completely separated from smart devices such as mobile phones and tablets, without being attached to any external devices. This is the biggest difference between it and the use of Bluetooth speakers. In addition, the smart speakers connected to the Internet can play songs, listen to the news, check the weather, and cooperate with other devices. It can also control home appliances. In a word, smart speakers will have unlimited possibilities in the future.

2. Transmission speed and sound quality

Regardless of whether it is a Bluetooth or a smart speaker, from the perspective of the speaker, in fact, everyone really cares about the sound quality after all. The theoretical transmission speed of the current mainstream Bluetooth 3.0 and Bluetooth 4.0 is 24Mbps, although it seems that it can meet the high-quality lossless transmission , But the actual speed is not up to the theoretical value and the audio is compressed, and the built-in DAC is used for low signal-to-noise ratio and high distortion decoding, which is intolerable for many audio enthusiasts.