Features: 1. Crisp and detailed treble, Good tone and extension. 2. Resolution and instrument separation is better than KZ ZS10 pro. 3. Easy to drive with 6 drivers. 4.Upgraded cable with slot protection design can effectively protect the pins to avoid breakage and extend the service life. 5.High Resolution enables you to hear the subtlety of the sound,and balanced, clean and detailed sound quality,outstanding high-frequency ductility,a smooth, sensible, detailed music experience. 6.Stylish Appearance & Exquisite Craftsmanship. Superior Sound Quality This KZ ZSX in-ear earphone is built with 5 Balanced armatures and 1 dynamic driver in one side. Two sets of DWEK drivers and 30095 drivers for highs and mids, broaden the frequency response range, offer you a detailed resolution and reproduces the real sound of instrumental tools. Improved 10mm double magnetic dynamic based on former version let the overall low frequency performed well and has a good bass range. Standard 3.5mm Plug & Widely Compatible The in-ear wired headphones Compatible with iPhones,Androids,iPad,tablets,iPods,Macbooks,Windows Device,Chromebook,computers,Mp3 Player,most devices with 3.5mm plug in audio jack.Some devices may require adapter (adapter not included) Comfortable In-Ear Design The cavity is made based on large data of cochlea. It’s scientifically molded to fit the ear like an customized earbuds. Even with vigorous exercise, it will still securely fit in the ear. Comfortable for long time wearing as well.it also comes with 3 additional different sizes of buds (S/M/L) to best fit your ears. Amazing Noise Isolation Effect The HiFi earphone can block out around 95 percent of ambient noise, which makes it easier for your to immerse yourself in your music world without disturbing. Enjoy the most immersive listening experience with a design that keeps earphones in and noise out during exercise or travel. 2pin Detachable Cable Connector This ear monitor is engineered for real-world reliability with 0.78mm 2Pin gold-plated interface detachable,replaceable cables design.which makes cable replacement or upgrade easily. You can freely change your cable type by adding your own cable.We can pair kz zsx wired earbuds with Bluetooth cable for a different mode of use. High Definition Microphone & One Button Control The wired earbuds earphones built-in HD microphone, and internal sound-absorbing holes reduce external noise, ensuring call quality and stable transmission. The controller is conveniently located, allowing you to effortlessly track songs, play music, take calls. The cover is made of high quality Zinc Alloy while the cavity is made of imported resin,The combination of different materials and color options display a modern and eye-catching ,fasionable earphones. and hybird 5BA 1DD ZSX produce clean, clear, deep, tight, and punchy bass.warm, superb on highs. Notice: 1. Please lower music volume before connecting earphones with audio devices to avoid earbud's diaphragm damage. and suggested to stop using earphones for a few minutes after every two hours. 2.Product Note: If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ears 3. H HIFIHEAR Audio have the Formal authorization from KZ company,All products are original.if you have any question ,pls contact with us,thanks ~