Headphones A4 MK-750 METALIC

The A4 MK-750 METALIC headphones are budget in-ear headphones with a microphone, aimed at everyday use – phone, laptop, voice chats, and light music on the go. They connect via a classic 3.5 mm audio jack, so you can easily use them with almost anything that has a standard audio output. With a speaker diameter of 9 mm and a frequency range of 20 Hz – 20 kHz, you get the typical “V-shaped” consumer sound – enough bass and clarity for daily needs. The In-Ear design helps isolate noise from the environment without having to crank up the volume.

What you get is a practical set of headphones with a microphone that doesn't deal with unnecessary extras. The 1.2 m cable is long enough for your pocket while holding your phone or backpack, without getting tangled unnecessarily. With 16 Ω impedance, the headphones are easily powered by weaker outputs from phones and laptops, without needing an additional amplifier. The sensitivity of 98 dB means you can achieve decent volume levels even from more modest devices. The built-in microphone allows you to take calls, talk in chat applications, and participate in online meetings without pulling out a separate microphone.

• Type: Headphones with microphone – suitable for both listening and talking and online chats.
• Type of headphone: In-Ear – passive noise isolation and better stability while walking and traveling.
• Connectivity: 3.5 mm audio jack – a universal solution for phones, laptops, PCs, consoles, and other devices with a standard audio port.
• Speaker diameter: 9 mm – compact drivers optimized for daily music, video, and podcast listening.
• Impedance: 16 Ω – easily powered by mobile devices without the need for an amplifier.
• Sensitivity: 98 dB – loud enough sound for normal use in an urban environment.
• Frequency range: 20 Hz – 20 kHz – covers the standard human hearing for balanced everyday listening.
• Cable length: 1.2 m – a convenient balance between freedom of movement and less tangling.
• Compatibility: Universal – works with a wide range of devices as long as they have a 3.5 mm jack.
• Warranty: 12 months – basic security from the manufacturer A4tech.

Who are these headphones suitable for? If you are looking for a cheap and simple solution for calls, music, and video on your phone or laptop, without chasing audiophile quality, they will do the job. They are not the best choice if you expect deep studio sound or plan long gaming sessions where comfort and sound positioning are critical.

The most sensible thing about the A4 MK-750 METALIC is the combination of a universal 3.5 mm jack, low impedance, and in-ear shape – just plug them in and they work on almost everything, without settings and complications.