Best Beryllium Alloy Spring - TopShopReview.com

FiiO FH7 Headphones Wired Earphones Earbuds in-Ear High Resolution Deep Bass 1DD+4BAs Hybrid IEMs with DIY Sound Filters for Smartphones/PC/Laptop/Tablet (Black)

Aerospace-grade aluminum-magnesium alloy, treated with five-axis CNC machining.
4 Knowles DFK+SWFK BA driver units and one 13.6mm large beryllium diaphragm dynamic driver.
S.TURBO acoustic design, exotic-inspired independent sound tubes and exotic-inspired acoustic structural design.
Provided with a LC-3.5C earphone cable that is composed of high-purity Litz monocrystalline copper-plated silver wires..
Create your own sound with 3 pairs of interchangeable sound filters and 15 pairs of eartips (with 3 pairs of SpinFit tips in S/M/L).

[Get the bass]:The 10mm beryllium-plated diaphragm dynamic driver in the FH3 earphones was specifically chosen for its superior acoustic properties.....
[Get the mid and high]:The FH3 headphones which is two Knowles drivers paired with a beryllium-plated dynamic driver ,placed near the opening of the....
[S.TURBO acoustic design & balanced pressure relief technology]:The longer and smoother turbine-inspired sound tubes effectively filter unwanted high....
[High-purity monocrystalline silver-plated copper cable]:The included high-purity monocrystalline silver-plated copper cable,with 4 strands of 96....
[Comfort for your ears & 3rd gen industrial design]:To make a circle of comfort for your ears,FH3 earbuds is made of a aerospace-grade....

[14.2mm beryllium-coated 1DD earphones]:The large 14.2mm beryllium-coated diaphragm ensures well-extended, well-textured, and plentiful bass. The....
[Bass-enhancing acoustic flute design]:Due to their open nature, flat-head earbuds will naturally leak a lot of bass, making your music sound dull. In....
[Twist-lock swappable plug]:The twist-lock swappable plug allows you to switch between 2.5mm/3.5mm/4.4mm heads to cover a wide range of scenarios.the....
[High-purity sterling silver cable]:with an upgraded cable, the EM5 earphones has a high-purity sterling silver with high conductivity that not only....
[DLP 3D printing technology]:FiiO has implemented the 4th generation of DLP 3D printing technology to create the EM5 earbuds, allowing for a uniquely....

Package Content: 30pcs x Compressed Spring.
Alloy spring steel offers good mechanical properties with greater corrosion and heat resistance than music wire.
Made of Alloy spring steel , features high elasticity and good precision, installed small size and generate strong force..

【All-new acoustic design】12mm beryllium-plated diaphragm + PU gasket dynamic low frequency driver, this driver is capable of some seriously deep and potent yet controlled bass..
【6mm beryllium-plated dynamic mid frequency driver】 Greatly-improved sensitivity, smoother coherency and less distortion --Time-tested Knowles TWFK-30017 high frequency balanced armature Lush, clean and pleasant vocals and exquisite treble.
【Semi-open design at the rear cavity】 Quickly relieve air pressures on the ear – leading to more comfortable and long listening sessions.
【3 sound adjustment switches, 8 possible sounds】The FH5s’s use of electronic crossover technology allows you to tune the sound to exactly the way you want with 3 sound adjustment switches. The impedance, bass, mids and treble adjustment depends on what music you are listening or what your preferences are!.
【Twist-lock swappable plug】The twist-lock swappable plug allows you to switch between 2.5mm/3.5mm/4.4mm heads to cover a wide range of scenarios..

【All-new acoustic design】12mm beryllium-plated diaphragm + PU gasket dynamic low frequency driver, this driver is capable of some seriously deep....
【6mm beryllium-plated dynamic mid frequency driver】 Greatly-improved sensitivity, smoother coherency and less distortion --Time-tested Knowles....
【Semi-open design at the rear cavity】 Quickly relieve air pressures on the ear – leading to more comfortable and long listening sessions.
【3 sound adjustment switches, 8 possible sounds】The FH5s’s use of electronic crossover technology allows you to tune the sound to exactly the....
【Twist-lock swappable plug】The twist-lock swappable plug allows you to switch between 2.5mm/3.5mm/4.4mm heads to cover a wide range of scenarios..

HIGH-END BERYLLIUM SPEAKERS EXPERIENCE - Hear sound in its' pure form, delivered by breakthrough speaker technology. We've made the speakers out of beryllium, an element commonly found in stars' core and used only in professional audio equipment. In other words, our premium wireless earbuds are out of this world..
MADE FOR SPORTS - TREBLAB X2 wireless headphones are perfect for sports and gym workouts. They’re super comfortable and we've included our special xDrop ear-fins so they won't fall out. Our sports earbuds are sweatproof and IPX4 waterproof so they won’t drown in sweat while running..
THE PERFECT CONNECTION - TREBLAB X2 wireless headphones come with the advanced Bluetooth technology for an unbreakable connection with your Android or iOS device, Mac or PC. Use your headphones to get things done on the go, with in-ear calls, mic, volume and SIRI support..
A BATTERY THAT CAN KEEP UP - Don't worry about running out of battery as X2 plays for an incredible 5 HOURS straight, and comes with a charging case that provides two additional charges, wherever you are..
100% RISK-FREE PURCHASE - We guarantee you’ll love your new X2 wireless sports headphones or we’ll refund you any time within 30 DAYS. They also come with a 1 year warranty and our....

Hard-anodized colour,CNC machined hardened aluminum alloy, and the leaf spring is spring steel,.
This is an optional leaf spring suspension set. Aside from the great looks, aluminum alloy and spring steel will not flex as much as plastic under stress or during high ambient temperatures..