Description

portable speaker with mic sri lanka

large bluetooth speaker with microphone

loud bluetooth speaker with microphone

Products Description
Mood Light Bluetooth Speakers for Home
The Bluetooth speaker comes with 64 million colors of lights, which will change and flicker with the speed of the music. When the volume of the Bluetooth device is at 80-90% of the total volume, the light will flicker at a high frequency with the speed of the music. When the volume of the Bluetooth device is at 70-80% of the total volume, the light will flicker at a low frequency with the speed of the music. When the volume of the Bluetooth device is below 70% of the total volume, all 64 million colors of lights will be automatically turned off, and the Bluetooth speaker system will automatically enter the hypnosis mode. At this time, the sound it plays is like a lullaby, giving people a comfortable rest environment. In addition, press and hold the power button for 3 seconds, and the Bluetooth speaker will enter the night light mode (i.e. warm white light lighting mode).

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bluetooth speaker qr
1. QR code scanning and recognition of Bluetooth speakers
QR code scanning and recognition of Bluetooth speakers is a technology that facilitates users to pair and connect speakers and devices. By scanning the QR code on the speaker, users can quickly pair and connect the speaker with a mobile phone, tablet or other device.

1. Principle of QR code scanning
QR code scanning is done through the built-in camera of the speaker or a dedicated QR code scanner. When the user scans the QR code, the speaker will match the scanned information with the built-in Bluetooth module to achieve connection with the device.
The principle of QR code scanning mainly includes the following steps:
1. Generation of QR code: The speaker manufacturer will generate a unique QR code on the speaker and print it on the speaker’s label or packaging.
2. Scanning of QR code: The user uses the camera of a mobile phone, tablet or other device to aim at the QR code on the speaker to scan.
3. Transmission of information: The scanner sends the scanned information to the speaker via Bluetooth.
4. Matching of information: The speaker matches the received information with the built-in Bluetooth module. If the match is successful, the connection with the device is achieved.
2. Technology of QR code recognition
QR code recognition technology is an important part of QR code scanning, which mainly includes the following aspects:
1. Image recognition: The built-in camera of the speaker will capture the image of the QR code and send it to the processor for processing.
2. Binary processing: The processor performs binary processing on the image, that is, separates the black and white pixels in the image for easy identification.
3. Edge detection: Through edge detection technology, the processor can find the edge of the QR code, thereby determining the shape and position of the QR code.
4. Feature extraction: The processor extracts the features of the QR code, such as the center point and corner points of the QR code, for subsequent matching processing.
5. Matching processing: The processor matches the extracted features with the built-in QR code database. If a matching QR code is found, the connection with the device is realized.
2. Advantages of QR code scanning and recognition
The application of QR code scanning and recognition technology in Bluetooth speakers has the following advantages:
1. Quick pairing: By scanning the QR code, users can quickly pair the speaker with the device without complicated pairing operations.
2. Simple operation: Users only need to use the device’s camera to scan, which is simple to operate and does not require additional pairing devices.
3. Security: QR code scanning and recognition technology has a certain degree of security and can prevent unauthorized devices from connecting to the speaker.
4. Compatibility: QR code scanning and recognition technology has strong compatibility and can be matched with the Bluetooth function of multiple devices.
III. Application of QR code scanning and recognition in Bluetooth speakers
The application of QR code scanning and recognition technology in Bluetooth speakers is mainly reflected in the following aspects:
1. Initial pairing: When a user uses a Bluetooth speaker for the first time, he can scan the QR code on the speaker to achieve initial pairing with the device.
2. Reconnection: When a user needs to reconnect a paired speaker, he can scan the QR code on the speaker to achieve a quick connection.
3. Multi-device switching: Users can use QR code scanning and recognition technology to quickly switch connected speakers between multiple devices.
4. Share music: Users can share music with others by scanning QR codes to achieve quick connection and sharing of speakers.
IV. Precautions for QR code scanning and recognition
When using QR code scanning and recognition technology, users need to pay attention to the following points:
1. Ensure the camera is clear: Users need to ensure that the device’s camera is clear to facilitate accurate scanning of the QR code.
2. Keep distance: When scanning the QR code, users need to keep a proper distance to ensure the accuracy of the scan.
3. Avoid interference: Users should try to avoid scanning the QR code in strong light or complex backgrounds to prevent interference.
4. Update firmware: Users should regularly check the firmware updates of the speaker to ensure the stability and compatibility of the QR code scanning and recognition technology.

Through the discussion in this article, readers can understand the principles, advantages and applications of QR code scanning and recognition of Bluetooth speakers, as well as matters that need to be paid attention to during use, so as to better utilize this technology and enhance the experience of using Bluetooth speakers.