Santa Claus Dancing Mini Speaker combines creative design, wireless Bluetooth audio, and interactive dancing fun. With its festive Santa Claus style, compact design, and easy operation, it is perfect for Christmas gifts, home decoration, parties, and everyday entertainment. A fun smart audio companion that brings music and joy to every moment.
Smart Audio Sunglasses are redefining the future of wearable audio by combining stylish eyewear design with advanced wireless technology. As consumers increasingly seek smart devices that deliver convenience, fashion, and lifestyle experiences, audio glasses are becoming a growing trend in the global consumer electronics market. Featuring Bluetooth connectivity, polarized lenses, comfortable frame designs, and hands-free audio functionality, Smart Audio Sunglasses provide an innovative solution for outdoor activities, travel, commuting, and everyday entertainment.
A creative portable speaker featuring face-changing effects, colorful breathing lights, Bluetooth 5.1, TWS connection, and hands-free calling. With a compact design and rechargeable battery, it delivers fun, interactive audio experiences for home, travel, outdoor activities, and gift markets.
The Fruit Avocado LED Dancing Speaker combines fun dancing motion, colorful LED lights, and Bluetooth 5.0 technology in a compact portable design. With TWS pairing, hands-free calling, and up to 4 hours of playtime, it's perfect for music lovers, gifts, and everyday entertainment.
A creative Bluetooth speaker combining music, movement, and entertainment. Featuring Bluetooth 5.4, dual 6W stereo sound, TWS connection, and a 5000mAh battery, it delivers powerful audio and up to 10 hours of playback for parties, outdoor activities, and everyday enjoyment. A stylish and interactive audio solution for modern lifestyles.
There are two methods for earphone noise reduction, active noise reduction and passive noise reduction.
The active noise reduction function is to generate a reverse sound wave equal to the external noise through the noise reduction system to neutralize the noise, thereby achieving the effect of noise reduction. Active noise-canceling headphones have a noise-canceling circuit that counteracts external noise. Most of them use a larger head-mounted design. They can use earplug cotton and headphone shells to block external noise and perform the first round of sound insulation. There is ample space to install active noise reduction circuits and power supplies.
Passive noise-cancelling headphones mainly form a closed space by surrounding the ears, or use sound-insulating materials such as silicone earplugs to block external noise. Since the noise is not processed by the noise reduction circuit chip, it can only block high frequency noise, and the noise reduction effect on low frequency noise is not obvious.
The three noise reduction measures usually used to reduce noise, namely noise reduction at the sound source, noise reduction during propagation, and noise reduction at the human ear, are all passive. In order to actively eliminate noise, people invented the "active noise reduction" technology. Its principle is: all sounds heard are sound waves and have a certain spectrum composition. If you can find a sound wave whose frequency spectrum is equal to the amplitude of the noise to be eliminated, and the phase is exactly opposite (a difference of 180°), the superposition of the two can completely cancel the noise. The key is how to get the sound that cancels the noise. The actual method used is to start with the noise itself, use a microphone to monitor the noise, and then try to generate a reverse sound wave through the electronic circuit and broadcast it through the speaker. From this point of view, the technology of active noise reduction is actually "fighting poison with poison."
When dealing with complex noise environments, the two "active noise reduction" MEMS microphones will pick up the noise in the ear and various external environmental noises respectively, and are equipped with an independent intelligent high-definition noise reduction processor to perform high-speed calculations on the different noises picked up. Precise noise reduction. And in response to the noise reduction requirements of different scenarios, the headset provides a variety of listening modes: two active noise reduction modes, strong and weak, and an ambient sound mode. Isolate external noise to varying degrees, eliminating the "black hole" of common noise-reducing headphones when listening.
