FIIO JT7 Black from an authorized Japanese retailer Serial number Planar Magnetic FIO-JT7-B [Shipped - included] Headphones, Open-back,

【Important Notice for International Buyers – Tomoayax Premium Audio Hi-Fi Japan】

■ Voltage Compatibility This product is designed exclusively for use in Japan (AC 100V, 50/60Hz).

Many regions use 120V or 220–240V. Using this product without a proper transformer in such voltage environments may result in malfunction, overheating, or serious and irreversible damage.

■ Plug Type This product uses a Japanese plug (Type A or B). A plug adapter may be required depending on your region.

■ Transformer Requirement (Very Important) A transformer is required for safe use.

A plug adapter only changes the plug shape and DOES NOT convert voltage. Using this product without a transformer may cause serious and irreversible damage.

■ Buyer Responsibility As this is high-end audio equipment, the buyer is fully responsible for confirming compatibility with their local voltage (100V / 120V / 220–240V) and usage environment before purchase.

■ No Return / No Refund Policy We do NOT accept returns or refunds for: ・Voltage mismatch (including 120V and 220–240V environments) ・Use without a transformer ・Plug incompatibility ・Damage caused by improper setup or usage

■ Liability We are not responsible for any damage, malfunction, or performance issues caused by improper use or incorrect voltage conditions.

■ Final Notice Please ensure full understanding of the above before purchasing. Use only under the correct voltage environment. Weighing just 318g, the JT7 is significantly lighter than typical planar magnetic headphones, making it comfortable for extended listening sessions and ideal for use at home or on the go. Furthermore, its foldable design allows for easy storage and portability in a bag. It boasts an incredibly compact design for an over-ear headphone. The 95 x 86 mm planar magnetic driver in the JT7 is entirely designed by FIIO, from diaphragm development to voice coil and magnetic circuit control, ensuring meticulous control over the sound the brand desires. The large planar magnetic diaphragm delivers a vast soundstage and powerful bass reproduction. *Unlike conventional dynamic and balanced armature drivers, planar magnetic drivers are driven by electromagnetic force acting across the entire surface of a lightweight, thin diaphragm. This ensures a uniform force is applied to the entire diaphragm, virtually eliminating the partial vibrations common in dynamic drivers. As a result, low distortion, excellent transient performance, and a vast soundstage are achieved. While this design may be expensive due to the complex manufacturing technology required, it offers acoustic advantages. For a planar diaphragm to exhibit its rapid vibration and delicate response characteristics to the fullest, it needs to be sufficiently thin. The JT7's diaphragm is only 3μm thick, allowing it to accurately respond to even the smallest changes in electrical signals. This results in excellent transient response characteristics and clear reproduction of high-frequency signals. The JT7's diaphragm employs a unique elastic support system called "F.E.S." (FIIO Elastic System). This driver diaphragm design incorporates a multi-dimensional texture on the surface by applying the edge processing techniques used in dynamic drivers to enhance the diaphragm's elasticity. F.E.S. allows for more precise control of internal stress than typical planar drivers, enabling the driver to move more freely without increasing distortion. As a result, it delivers powerful and impactful bass. *F.E.S. (FIIO Elastic System): A unique elastic support system designed to increase the driver's movement by adding a new deformation vector to a planar film, allowing the diaphragm to build elastic force to counteract internal stress. The JT7 achieves high sensitivity of 92 dB/mW thanks to the powerful magnetic field generated by its high-performance bidirectional neodymium-iron-boron magnets. These magnets provide robust and sufficient driving force to the planar driver, allowing even low-output audio devices to produce a large and rich sound. The JT7 is manufactured using the same premium process as FIIO's planar magnetic earphones/headphones, the FP3, FT1 Pro, and FT7. Unlike conventional methods, the JT7's manufacturing process is derived from high-precision plating technology used in the semiconductor industry, enabling the voice coil and diaphragm to be seamlessly integrated. This not only allows for extremely thin coil wiring but also significantly improves the structural integrity and durability of the coil. The JT7 features a detachable cable design and comes standard with cables and adapters to support various connection methods. It includes a 3.5mm single-ended cable, a 4.4mm balanced cable, and a 3.5mm to 6.35mm adapter, allowing it to be used with a wide range of audio equipment. Another attractive feature is the ability to directly experience the differences in characteristics depending on the connection method. The ergonomically designed multi-axis headband structure allows the ear pads and joints to move flexibly, providing a secure fit that conforms to the shape of your head. This fit not only enhances comfort but also contributes to accurate sound reproduction, deepening your immersive music experience. The ear pads, which come into contact with your skin, are made of a highly breathable mesh material, which helps to reduce heat and stuffiness even during long listening sessions. Furthermore, both the ear pads and headband cushions are removable, making maintenance such as cleaning and replacement easy, so you can enjoy using them for a long time. The JT7 inherits FIIO's high manufacturing quality. The hinge uses high-strength fiberglass material, offering superior durability compared to ordinary plastics. During the research and development phase, tens of thousands of professional durability tests were conducted, including stretching, twisting, swinging, bending, and tensile strength tests, guaranteeing high robustness and quality in every unit. Stretching test: over 10,000 cycles; Torsional test: over 10,000 cycles; Tensile load test: over 5kg. The JT7 is an open-back headphone equipped with FIIO's proprietary 95 x 86 mm planar magnetic driver. Its lightweight, foldable design, weighing only 318g, brings revolutionary portability to planar magnetic headphones. The ultra-thin 3μm diaphragm delivers vivid high frequencies, while FIIO's unique F.E.S. elastic support system creates a powerful bass, allowing you to fully enjoy a vast soundstage. With included 3.5mm/4.4mm cables for compatibility with a wide range of devices, this Hi-Res certified headphone lets you easily enjoy high-quality sound at home or while traveling.