FiiO FH3 Triple Drive(1 Dynamic + 2 Knowles BA) in-Ear HiFi Earphones with High Resolution, Bass Sound, High Fidelity for Smartphones/PC/Tablet Condition is Open box. Shipped with USPS First Class Mail. [Get the bass]:The 10mm beryllium-plated diaphragm dynamic driver in the FH3 earphones was specifically chosen for its superior acoustic properties. The beryllium-plated diaphragm is not only light and thin but is also extremely rigid, allowing for thunderous yet lightning quick, responsive and dynamic bass. [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 sound tube, controlled by a physical + electronic frequency crossover system masterfully cover the entire frequency response range. High-frequencies: the Knowles RAD-33518 driver provides extremely clear sound with well-extended yet smooth treble. Mid-frequencies: the ED-30262 gives sweeter and fuller vocals as well as a wider soundstage. [S.TURBO acoustic design & balanced pressure relief technology]:The longer and smoother turbine-inspired sound tubes effectively filter unwanted high frequencies, giving one deeper and harder-hitting bass after it is combined with FiiO’s patented S.TURBO acoustic design. And the FH3 earphones utilizes FiiO’s patented balanced pressure relief technology, carefully designed so as to ensure that the air pressure in the front and rear chambers is balanced, thus making for stress-free listening. [High-purity monocrystalline silver-plated copper cable]:The included high-purity monocrystalline silver-plated copper cable, with 4 strands of 96 wires, was carefully chosen for its fidelity and ability to resolve details, being noticeably better than the typical earphone cable. One’s music will sound sublime with the included cable, which brings the best out of the FH3’s drivers. [High-purity monocrystalline silver-plated copper cable]:The included high-purity monocrystalline silver-plated copper cable, with 4 strands of 96 wires, was carefully chosen for its fidelity and ability to resolve details, being noticeably better than the typical earphone cable. One’s music will sound sublime with the included cable, which brings the best out of the FH3’s drivers. FiiO's Latest 1DD+2BA Hi-Res Earphones. Here we come. One of FiiO’s classic earphones is getting a thorough upgrade to the next level! The FH3 utilizes an expertly tuned hybrid system of a 10mm beryllium-plated diaphragm dynamic driver + 2 Knowles BA paired with a high-purity monocrystalline silver-plated copper cable for a truly excellent high-fidelity sound. I believe you have been looking forward to it for a long time, and believe me if you know more about it, you must be convinced by its charm. FiiO's Latest 1DD+2BA Hi-Res Earphones. Lightning-quick, intense bass The 10mm beryllium-plated diaphragm dynamic driver in the FH3 was specifically chosen for its superior acoustic properties. The beryllium-plated diaphragm is not only light and thin but is also extremely rigid, allowing for thunderous yet lightning quick, responsive and dynamic bass. Two Knowles BA drivers for powerful sound Two Knowles drivers paired with a beryllium-plated dynamic driver placed near the opening of the sound tube, controlled by a physical + electronic frequency crossover system masterfully cover the entire frequency response range. High-frequencies: the Knowles RAD-33518 driver provides extremely clear sound with well-extended yet smooth treble. Mid-frequencies: the ED-30262 gives sweeter and fuller vocals as well as a wider soundstage. Low-frequencies: a 10mm-beryllium-plated diaphragm dynamic driver provides explosive S.TURBO acoustic design Even more performance is extracted from the beryllium-plated dynamic driver when it is combined with FiiO’s patented S.TURBO acoustic design. The longer and smoother turbine-inspired sound tubes effectively filter unwanted high frequencies, giving one deeper and harder-hitting bass. Patent number: ZL 2018 2 1141627.9 · Physical + electronic three-way crossover · Tube length: 41.5mm · Effective crossover rolloff: about 32dBBass, mid, high The carefully-designed internal acoustic structure as a physical frequency crossover system – ensuring that bass, mids, and treble seamlessly blend without interfering with each other for an extremely vivid experience. Design for your ears Continuing the same design language as the others in the FH series of earphones, the all-new further refined water ripple design faceplate of the FH3 gives it robust strength while looking elegant. The various curves of different angles and through data on thousands of people’s ears as well as going through more than 10 rounds of trials and iteration, an extremely comfortable design for the FH3 was created. Experience a truly smooth-sailing experience with the FH3 and immerse yourself in the world of music. Design for your ears The FH3 earphones is certified by the Japan Audio Society to be capable of a frequency response up to 40kHz, which can fully reproduce the audio and give you a natural and life-like listening experience that truly lets you listen to the music the way the artists wanted it to sound. It brings you “Hi-Res Audio” with quality far beyond those of CDs. MMCX cable upgrade If you want to lisiten more different, to replace the stock cable with a higher purity one, as long as it’s with the common MMCX connectors. With wireless Bluetooth earhooks UTWS1 With support for the aptX/AAC/SBC Bluetooth formats, the UTWS1 instantly transforms the FH3 hybrid IEM into a true wireless one. With neckband Bluetooth cable LC-BT2 Take the hi-res music around wherever with the LC-BT2’s comfortable neckband design. Equipped with the Qualcomm CSR8675 + AK4331 DAC, this neckband cable lets one experience true hi-fi music through Bluetooth. Every accessory included with the FH3 was carefully chosen to enhance your wearing experience. 11 pairs of eartips spanning 4 different sizes and types allow one to maximize their wearing and listening comfort. (1) balanced sound*3 (S/M/L) (2) enhanced bass*3 (S/M/L) (3) enhanced vocals*3 (S/M/L) (4) foam*2 Laboratory tests show that if the treble-producing driver is placed closer to the opening of the sound tube, 8-15 kHz frequencies are 3-4dB louder than if placed further back, for clearer overall treble. Acoustically, placing the driver responsible to treble closer to the ear reduces unwanted treble reflections that reach your ears compared to a typical earphone design, ensuring minimal loss of treble detail and thus making for more pleasant listening.