Metal HIFI in-ear headphones with double moving coil and double horn design, 9.2mm NdFeB speaker for heavy bass, 3.5mm AUX plug compatible with smartphones and computers, featuring smart wire control with built-in microphone, available in black or silver
Metal HIFI In-Ear Headphones with 9.2mm Speakers and Smart Controls for Smartphones

Experience a focused audio presentation with these metal HIFI in-ear headphones, designed for direct connection to your personal devices. The core appeal lies in the tangible construction and specified audio components: a housing made from CNC zinc alloy gives them a distinct metallic feel and a total weight of 15g, while the internal 9.2mm NdFeB (Neodymium) speaker is engineered for sound reproduction. They employ a double moving coil and double horn design, which the manufacturer states contributes to a heavy bass response and a 3D surround sound effect. Functionality extends beyond listening with integrated smart wire controls featuring a built-in microphone for handling calls and managing music playback without needing to touch your device.
Features and Construction

The product's identity is built on its stated materials and acoustic design. This section details the physical build and the components responsible for its audio performance.
Material and Build
The earphone housing is fabricated from CNC zinc alloy, a metal chosen for its machining precision and solid finish. This construction results in a product weight of 15g. The in-ear fit is achieved through a piston-style design, which also aids in passive noise isolation by creating a seal in the ear canal to reduce ambient noise intrusion. The cable includes an inline control module housing the microphone and control buttons.
Size and Practical Fit
The key audio component is the 9.2mm diameter NdFeB dynamic speaker driver. This size and magnet material are associated with the potential for fuller bass response. The earphones connect via a standard 3.5mm AUX plug, ensuring broad compatibility with smartphones, computers, MP3, and MP4 players that have this common audio jack. The operating temperature range is specified from -10°C to +40°C, indicating the environmental conditions for reliable use.
Uses and Placement

These headphones are positioned as a versatile audio tool for both media consumption and communication. Their design supports use in various everyday and mobile scenarios.
Event or Professional Use
While geared towards personal entertainment, the combination of the noise-isolating design and the integrated microphone makes them a practical option for clear voice communication during calls in moderately noisy environments. The smart controls allow for efficient management of calls and playback without interrupting your workflow, suitable for remote conversations or listening to briefing materials.
Everyday Home Use
At home, their primary function is for personal media enjoyment connected to computers, tablets, or MP3 players. The stated heavy bass and 3D sound effect are aimed at enhancing music, film, and gaming audio. The 3.5mm plug offers a universal wired connection, avoiding Bluetooth pairing or battery concerns, making them a simple plug-and-play solution for various audio sources.
Benefits and Buying Value

The value proposition centres on the combination of a metal build, specified audio hardware, and integrated controls at a direct sales point.
Reuse and Low Maintenance
As a wired accessory with a robust metal construction, they require minimal maintenance—primarily keeping the plug and eartips clean. Their durability is linked to the solidity of the zinc alloy housing. The universal 3.5mm interface means they can be used with a wide range of current and legacy devices, extending their useful life across multiple gadgets or upgrades.
Why Choose This Product
This product offers a defined set of features: a tangible metal build, a specific 9.2mm speaker size with a double coil/horn design targeting bass performance, and the convenience of inline controls with a microphone. It presents an alternative to purely plastic-bodied earphones, focusing on a combination of material choice and stated acoustic engineering for users seeking a wired listening solution with call functionality.
