Discover the Metal Mini Speaker, a compact and stylish Bluetooth audio solution featuring a premium metal housing, Bluetooth 5.0 connectivity, 3W speaker output and convenient Type-C charging. Its ultra-portable design makes it ideal for everyday use, travel, retail and gift markets, while OEM/ODM customization options support branding and differentiated product positioning.
Discover the growing potential of White Noise Wireless Speakers in the lifestyle audio market. Combining relaxing white noise, Bluetooth connectivity, warm ambient lighting, and portable design, these multifunctional products create new opportunities for brands, retailers, and private label businesses seeking innovative sleep and lifestyle audio solutions.
High Quality Wood Headphones combine African ebony, metal, and PU materials to create a distinctive and premium-looking audio product. Featuring a 20Hz–20kHz frequency range, 32-ohm impedance, 102±3dB sensitivity, and a standard 3.5mm stereo plug, they provide a practical wired listening experience. With their natural material design and strong visual appeal, these wooden headphones are ideal for brands, retailers, gift companies, and distributors seeking differentiated consumer audio products.
Clock Bluetooth Speaker with Wireless Charger combines smart audio, wireless charging, and modern lifestyle design in one innovative device. Designed for brands and consumers seeking multifunctional electronics, it delivers convenient music playback, fast wireless charging, LED lighting, and stylish desktop functionality.
Creative Cartoon Moving Bluetooth Speaker with interactive design, Bluetooth 5.3, TF card support and portable audio performance. A unique wireless speaker solution for retailers, gift companies and brands seeking innovative OEM/ODM products.
The Mini Touch Furniture Speaker combines stylish design with versatile audio functions, featuring 2.1-channel sound, Bluetooth 5.0, touch control, AUX, USB playback and hands-free calling. Its compact matte ABS design makes it ideal for modern home and desktop spaces.
The Soundbar LED Wireless Speaker NSP-0463 combines Bluetooth 5.3 audio, RGB lighting and a stylish soundbar-inspired design. With TWS, TF, USB and AUX functions, it is ideal for retail, private-label and promotional markets. OEM/ODM customization is available.
Discover how Golf Magnetic Speakers are creating new opportunities in the portable audio market. Combining powerful Bluetooth sound, magnetic mounting, IP67 waterproof protection, portable design, and multifunctional features, these speakers are designed for golf carts and active outdoor lifestyles. As a China consumer electronics OEM/ODM manufacturer, we explore how customized Golf Magnetic Speaker development can help brands, retailers, distributors, and private label businesses create differentiated products for global markets.
Compact and fun, this Portable Karaoke Speaker with Microphone features Bluetooth 5.1, TF, Line In and LED lighting. Ideal for home entertainment, gifts, retail and private-label markets, with OEM/ODM customization available.
Sport Smart Video Audio Glasses combine hands-free video recording, wireless audio and AI-powered functions in a lightweight wearable design. Featuring Bluetooth 5.4, AI voice interaction, object recognition, translation, video stabilization, ENC noise reduction and Wi-Fi transmission, these smart glasses are designed for sports, travel, content creation and everyday communication. With app support and OTA upgrades, they offer a flexible smart wearable solution for brands, distributors and retailers exploring next-generation audio and AI wearable products.
1. Bandwidth relationship between subwoofer and full frequency system (crossover) of portable bluetooth speakers
2. Relationship between output sound pressure level (gain) of subwoofer and full frequency system of portable bluetooth speakers
3. Signal arrival time relationship (delay) between subwoofer and full frequency system of portable bluetooth speakers
The portable bluetooth speaker itself is a bandpass device. Therefore, in order to simplify the measurement and facilitate the observation of images, we will use high-pass and low-pass filters to replace the actual speakers. The result obtained in this way basically fits the actual situation, except that the actual measurement microphone cannot be added to the simulation test, so it is impossible to simulate the influence of the change of the microphone test position. However, considering that the impact caused by the change of the test microphone position mainly affects the high-frequency part of portable bluetooth speakers with obvious directivity, and portable bluetooth speakers basically shows the omnidirectional characteristic in the low frequency band, the impact caused by the different test microphone position is not large. So the problem of testing the position of the microphone is not a concern.
Another factor that is affected by the position of the test microphone is that different microphone positions will cause the distance between the two sets of portable bluetooth speakers under test (bass and full range) to reach the test microphone to change. In this way, the measurement results in some positions may be very good, but if the distance between the two portable bluetooth speakers and the microphone is equal to 1.5 times the wavelength of the frequency near the crossover point, the overall response curve will be A valley appears (interference cancellation). Therefore, when performing on-site measurements, it is recommended that the test microphone be placed in the audience area where the amplitude and time difference are representative.
