Sport Smart Video Audio Glasses combine AI technology, wearable innovation, and smart audio experiences into one advanced lifestyle device. Featuring video recording, photo capture, AI object recognition, voice interaction, Bluetooth V5.4 connectivity, and smart APP functions, these AI smart glasses provide users with hands-free communication, intelligent assistance, and immersive digital experiences. Designed for global retailers, distributors, and technology brands, they offer strong market potential as an innovative smart wearable electronics product with customization opportunities for different applications and markets.
Bluetooth Light Headphone combines wireless audio technology with creative lighting design and modern lifestyle appeal. As a China consumer electronics OEM/ODM manufacturer since 2008, we develop innovative smart audio products with strong R&D, design, and manufacturing capabilities for global brands and markets.
Cartoon Powerbank with Dual LED Light combines a 10000mAh portable charging solution with creative design and built-in charging cables. With strong visual appeal and practical functionality, it is ideal for e-commerce, retail, gift markets, and customized consumer electronics solutions.
Colorful Lights Bluetooth Speaker combines wireless audio technology, creative LED lighting and portable design to deliver a stylish lifestyle audio experience. As a professional consumer electronics manufacturer since 2008, we develop innovative Bluetooth speakers with reliable quality, flexible customization and global market adaptability for brands and retailers worldwide.
A durable and portable Bluetooth speaker designed for outdoor entertainment. Featuring waterproof protection, stable wireless connection, NFC pairing, MP3 playback, hands-free calling, and up to 12 hours of battery life, it is ideal for camping, travel, sports, and daily use. Custom OEM/ODM solutions are available for global brands, retailers, and distributors.
Mini Pet Training Ball is an innovative smart pet product designed to enhance interaction between pets and owners. Combining playful design with intelligent features, it supports pet training, emotional interaction, and daily companionship. With smart connectivity and portable design, it provides a more engaging experience for pets while helping owners stay connected anytime, anywhere. Perfect for modern pet lifestyles, it brings together technology, convenience, and fun in one creative solution.
Discover a new generation of smart lifestyle audio with our Wireless Charging Bluetooth Speaker with RGB Light, designed for modern consumers who value convenience, style, and multifunctional technology. Combining high-quality Bluetooth audio, 10W wireless charging, and dynamic RGB ambient lighting, this innovative speaker delivers an enhanced entertainment experience for homes, offices, and personal spaces.
China TWS earphone manufacturer providing innovative OEM/ODM wireless audio solutions, custom earbuds development, and smart audio products for global brands since 2008.
Detachable Wireless Charging Lampstand with UV Sterilization Lamp combines smart charging technology with practical hygiene solutions, offering a multifunctional lifestyle electronics experience. Designed with a detachable UV sterilization lamp and wireless charging function, this innovative product is ideal for smart homes, offices, travel, retail collections, and gift markets. With OEM/ODM customization capabilities, manufacturers can help global brands, distributors, and retailers develop differentiated smart lifestyle products for international markets.
Wireless ANC Headphones combine advanced noise cancellation, Bluetooth 5.4 connectivity, and premium comfort to meet the growing demand for immersive audio experiences. Featuring a 40mm high-resolution driver, a reliable Lanxun AB8931H chipset, and soft leather ear cushions, they deliver clear sound, stable wireless performance, and all-day wearing comfort for work, travel, entertainment, and everyday use. As an experienced OEM/ODM manufacturer, we provide flexible customization, industrial design, and product development solutions to help global brands, distributors, and retailers create competitive wireless audio products tailored to diverse market needs.
So how to solve this problem?
First of all, we need to understand why the original phase curves of different models or different structures of outdoor bluetooth speakers are different. There are roughly 4 reasons:
1. The frequency division order is different or the frequency division slope is different. Each order of the high-pass filter and the low-pass filter has a phase shift of 45° at the crossover point. Different outdoor bluetooth speakers have different crossover structures, and some are two. Order, some are third order;
2. For externally driven outdoor bluetooth speakers, different unit processor channels have corresponding delay adjustments, that is, different programs have different delays. The amount of delay is determined by the delay difference between the units caused by the outdoor bluetooth speaker structure and the crossover slope, which results in different delays.
3. Different built-in crossover outdoor bluetooth speakers have different crossover adjustments. Some trebles have positive polarity, and some trebles have reverse polarity, so the phases of different models are different.
4. The number of frequency divisions is different. For example, three-way and two-way outdoor bluetooth speakers cannot achieve the same phase. Obviously, the reason is that the three-way frequency has one more frequency point than the two-way frequency, and the phase shift is more serious.
Therefore, the original phase curves of outdoor bluetooth speakers that are not the same model or different in structure will definitely be different. When they are used together, they will have an offset effect. Even if they are taken away to compensate for the equivalent delay difference, the offset will also occur.
When we are debugging, can we solve the problem with the following methods?
A. Test the original phase curves of the two outdoor bluetooth speakers(main and auxiliary) at close range, and then adjust the phase of the auxiliary outdoor bluetooth speaker to be the same as that of the main amplified outdoor bluetooth speaker. After finding the delay difference, add it to the auxiliary outdoor bluetooth speaker.
B. The second method is to first measure the delay difference of the two sets of outdoor bluetooth speakers, and then find their phase difference, and finally, pull the phase curve of the auxiliary outdoor bluetooth speakers to be the same as the main PA outdoor bluetooth speaker.
From the operation method, we can conclude that the difference is only the difference in the sequence of adjustment steps, but for actual operation, the first type is easier to learn, because the phase curve at close range is relatively stable and easy to observe and judge. But if the two sets of outdoor bluetooth speakers have been hung higher, the operability of the scenario A method is relatively weak.
The above is for the debugging between outdoor bluetooth speakers of different manufacturers. Sonic will adjust the phase before shipment. For customers, the later processing will be more convenient.
