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SpinFit CP-220 M2
What is SpinFit?

Simply replace the traditional ear buds on your headset with SpinFit, will greatly enhance the quality of sound and wearing comfort, it is the most economical and effective way to transform your current headset into a premium quality headset, this is what SpinFit offers!
Design Features
Patented design
SpinFit has a unique cushion design at the centre of the duct.
The structure of the cushion enables the ear bud to rotate 360° and this special design has awarded with patented certificate.
Patented Country: United States, European Union, Japan, Taiwan, China
Enhance treble & bass
SpinFit has a cushion design to enables the ear bud to rotate 360° in order to be inserted deeper in the ear canal smoothly, to isolate the surrounding noise thus enhance treble and bass, so the music is close to the original and full of presence.
Comfort wear
SpinFit has a cushion design to enable the ear bud to rotate 360° in order to be inserted deeper in the ear canal smoothly and flexible to fit different sizes and shapes of the ear canal without the discomfort of the traditional ear bud.
The traditional ear bud does not have the cushion design, so when it reaches the first curve in the ear canal, it is being forced deeper into the ear canal and caused pressure and discomfort, however SpinFit is able to be inserted deeper into the ear canal smoothly and does not caused any pressure and discomfort.
Revolution
A comparison of SpinFit and other ear buds
Human ear has a lot of curves all the way to the eardrum.
When wearing a traditional ear bud, no matter how hard you try to force it into the ear canal, it stops when it reaches the first curve in the ear canal, it is very difficult and discomforts to insert any deeper and further.
The multi-layered ear bud is designed with a smaller shape at its front-end, after it reaches the first curve in the ear canal, the duct is bent and reduces the volume of the sound.
Performance
Sound quality verification
When listening to music with headphones, if the distance of the source of the sound output is closer to the tympanic membrane, the better to improve the treble range and enhance treble; SpinFit ear buds can also prevent air leakage to extend the bass range and enhance bass.

SpinFit ear buds can be inserted deeper in the ear canal, block out the surrounding noise to enhance treble and bass, resulting in better quality of sound; we used a professional machine made especially to detect the sound characteristics to verify.
Insert the ear buds deeper in the ear canal → Enhance treble
Firstly, the headset is fitted with ear buds.
The blue ear buds are inserted deeper in the ear canal than the orange ear buds to show the difference in distance between the source of the sound output and the tympanic membrane.
With the difference in distance, we test the performance of treble.
Compare treble between the two experiments.
At 10000Hz, the blue ear buds is at 105dB and the orange ear buds is at 101dB proves when the ear buds are inserted deeper in the ear canal will enhance treble.

SpinFit has a cushion structure that enables it to be inserted deeper in the ear canal to enhance treble.
Airtight improvement → Enhance bass
Firstly, the headset is fitted with ear buds.
The orange ear buds have greater air leakage than the blue ear buds.
With the difference in air leakage, we test the performance of bass.
Compare bass between the two experiments.
At 50Hz, the blue ear buds is at 106dB and the orange ear buds is at 101dB proves traditional ear buds with bad airtight can not perform bass well.
SpinFit has a cushion structure to improve airtight in order to enhance bass.