2.0 USB Speaker with RGB Light combines powerful stereo sound, modern design, and colorful lighting effects for gaming, office, and home entertainment. Featuring dual 2-inch drivers, USB plug-and-play connectivity, and a compact ABS housing, it delivers a stylish desktop audio solution. As a China OEM/ODM speaker manufacturer, we provide customized solutions for global brands, retailers, and distributors.
The Mini Suction Cup Wireless Charger combines compact design, wireless convenience, and practical functionality. Featuring 10W fast wireless charging, a stable suction cup structure, and a lightweight ABS + silicone body, it is ideal for home, office, travel, and gift applications. A smart lifestyle accessory designed for retailers, brands, and distributors seeking innovative charging solutions.
Hearing Aid TWS Headphones combine Bluetooth audio, hearing assistance, ANC noise cancellation, and voice calling in one compact design. With Bluetooth 5.1, a portable charging case, and comfortable wearing experience, they are ideal for daily communication, travel, and entertainment. A smart audio solution for retailers and brands seeking innovative wearable products.
Smart Outdoor Inflator Companion combines an air pump, power bank, and outdoor light into one versatile device designed for modern outdoor lifestyles. With a portable design, powerful performance, and multifunctional features, it provides a convenient solution for camping, travel, cycling, and emergency situations. This innovative outdoor electronics product delivers both practicality and market value, making it an ideal choice for retailers, brands, and distributors seeking differentiated smart lifestyle products.
China Manufactured Bicycle Bluetooth Speaker is designed for outdoor enthusiasts with waterproof performance, portable design, and reliable wireless audio. Featuring Bluetooth 5.0, IPX7 waterproof protection, 5W sound output, and rechargeable battery, it is an ideal solution for cycling, travel, camping, and outdoor lifestyle markets.
A China-based OEM/ODM manufacturer established in 2008, specializing in Bluetooth speakers, headphones, sound bars, and smart audio devices. We provide full customization, strong R&D support, and reliable mass production for global brands, retailers, and distributors across Europe, Japan, Korea, and Australia.
OPENEAR HEP-0170 is a lightweight bone conduction headphone designed for sports and daily use. It delivers sound through cheekbone vibration, keeping ears open for comfort and safety. With Bluetooth 5.2, IPX5 water resistance, and 6–7 hours of playtime, it is ideal for running, cycling, commuting, and calls. A perfect OEM/ODM wearable audio solution for global brands.
The Pet Training Companion NSP-0026A is an innovative Bluetooth speaker designed to make outdoor activities with pets more enjoyable and convenient. Combining Bluetooth 5.4 connectivity, voice reminder functionality, hands-free calling, an LED night light, and a leash hook in one compact device, it enhances everyday dog walking, training, camping, and travel experiences. As the global pet economy continues to grow, multifunctional smart accessories that blend entertainment, safety, and practicality are becoming increasingly popular. For brands and retailers, this product offers an excellent opportunity to meet rising consumer demand while expanding into the fast-growing smart pet electronics market.
The Face-changing Batman Bluetooth Mini Speaker is a compact and creative audio device designed for modern lifestyle and promotional markets. It features Bluetooth 5.1 connectivity, EQ audio changing effects, colorful breathing LED lights, TWS stereo pairing, and hands-free calling for an engaging listening experience. Made from durable ABS material, it delivers 3–5 hours of playtime with a rechargeable battery. Its unique design makes it ideal for home use, travel, gifts, and social media marketing. OEM/ODM customization is available, including logo, color, packaging, and private label options for global brands and retailers.
White Noise Wireless Speaker combines a Bluetooth speaker, 20 soothing white noise sounds, and a soft night light in one compact device. Designed for better sleep, relaxation, and everyday listening, it creates a calming atmosphere at home, in the office, or while traveling. Its modern design and multifunctional features make it an ideal smart audio solution for today's lifestyle-focused consumers.
In professional audio systems, the matching of professional power amplifiers and professional portable music speaker, in addition to the soft timbre (timbre collocation is often said to be soft and hard, it is based on the designer's design and materials for the tone color, and has the characteristics and personality ), there are some hard matches on technical indicators. Soft collocation is based on accumulated experience and personal preference, while hard collocation is determined by data and basic technical common sense. The following is a brief description of the four major "hard collocation" related issues.
Do you know the 4 major combinations of professional audio systems portable music speaker?
Impedance matching
1. When the tube power amplifier (tube amplifier) is matched with portable music speaker, the output impedance of the amplifier should be equal to the impedance of portable music speaker, otherwise it will reduce the output power and increase the distortion. Fortunately, most amplifiers have variable output impedance matching interfaces such as 4-8-16 ohms, and impedance matching with speakers has become simpler.
2. For the matching of transistor power amplifier (stone machine) and portable music speaker impedance
① When portable music speaker impedance is higher than the output impedance of the power amplifier, there is no other effect except for the different degree of reduction of the output power.
② When portable music speaker impedance is lower than the output impedance of the power amplifier, the output power increases proportionally, and the distortion generally does not increase or the increase is negligible. However, portable music speaker impedance cannot be too low during matching, such as as low as 2 ohms (referring to when two 4 ohm portable music speakers are connected in parallel). At this time, only the power amplifier has a large margin, and the high-power tube and multi-tube parallel push-pull with good performance are used. It has no effect on such power amplifiers.
On the contrary, ordinary power amplifiers are generally not rich enough, and the pcm and lcm of the power amplifier tubes are not large. When the volume is turned on again, the distortion will increase significantly, and the box will be destroyed in serious cases. Pay attention.
Power matching
1. In principle, when portable music speaker rated power is inconsistent with the power amplifier's rated power, for the amplifier, its power is only related to portable music speaker impedance, not portable music speaker rated power. Regardless of whether the power of portable music speaker and the power of the amplifier are the same, it has no effect on the work of the amplifier, but is only related to the safety of portable music speaker itself.
2. If portable music speaker impedance meets the matching requirements, and the withstand power is less than the power of the amplifier, the driving power is sufficient, which sounds very comfortable. This is often said that the reserve power of the power amplifier must be large in order to fully express the full content of the music, especially the low frequency part of the music, which is more vivid and powerful. This is a good match.
3. If the rated impedance of portable music speaker is greater than the rated power of the power amplifier, although both can work safely, at this time the power amplifier is not enough to drive the power, and the loudness will be insufficient. It often appears that it has been turned on to a saturated state, and the distortion is aggravated. Powerless. This is a poor match.
Match according to the damping coefficient
For choosing a pair of hi-fi speakers, there should be the best specific resistance requirements (responsible speaker manufacturers should provide this data, which refers to the requirements for the damping coefficient of the power amplifier. To make it clear is to match this. For portable music speakers, what is the damping coefficient of the power amplifier required?).
The matching of wires
The effect of use is a matter of opinion. In general, a good cable will improve a certain system of audio equipment. Its transmission theory is too complicated to say, it can only be briefly described.
The material and structure of the transmission line determine three important parameters, namely resistance, capacitance, inductance (and electromagnetic effect, skin effect, proximity effect, reactance, etc.). Don’t look at the small gaps in these parameters, which will directly affect the audio system frequency. Characteristics, damping characteristics, signal rate, phase accuracy, and tone color orientation and sound field positioning, etc. Its main function is high-speed transmission (to minimize signal loss), anti-vibration, anti-noise, anti-interference (mainly radio wave rf1 radio frequency interference and em1 electromagnetic wave interference, etc.).
