Product: KZ ES4 Hybrid IEM Earphones,Yinyoo ES4 HiFi Stereo Deep Bass Earbuds with Balanced Armature Dynamic Driver&3.5mm Audio Plug Detachable Cable Noise Isolating Headset Headphones for Sports(Green Nomic)
Brand: YINYOO
Color: Green

1.Exclusive housing by acoustic resin material  
 
2.Professional division of physical frequency quality tuning technology  
 
3.The standard of independent patent technology silicon tips  
 
4.The lower the internal resistance of professional wire , The design of human nature  
 
5.A specially designed HD call microphone  
 
6.The armature dynamic unit sound advantage complementary ,give more details of music show  
 
7.Congenital advantage ,the experience is really HIFI!  
 
8.Driver performance is tough ,bass bursts more powerful 
 
9.es4 wired earbuds with a memory hook,solid ergonomic wear experience, Durable,the in-ear headphones make it easier to keep moving, providing comfort fit. 
 
 
Product features： 
 
Brand Name: KZ 
Model name: KZ ES4 
Connectivity : Wired 
Driver unit: hybird 1BA With 1DD 
Vocalism Principle: Hybrid technology 
Resistance: 25 ohm 
Sensitivity: 104 dB/mW 
Frequency Response Range: 20-40000Hz 
Control Button: Yes 
Volume Control: No 
With Microphone: Optional 
Connectors: 3.5mm 
Line Length: 1.2m±3cm 
 
 
What’s in the box. 
 
1 x KZ ES4 Earphones 
3 x Earbud tips 
1 x User manual 
 
 
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. This kz es4 iem earbuds with standard 3.5mm plug, pls kindly check your audio devices connector before your purchase. 
 
3. Yinyoo Audio have the Formal authorization from KZ company , All products in Yinyoo Audio are original.Any problems, pls let us know freely.
Yinyoo ES4 designed with Two Drivers,One dynamic driver and one balanced armarture hybrid to produce amazing treble and bass.Enhancing the sound quality and exterior again,friendly design and free removable cable design.Perfect for holiday,parties.
Yinyoo KZ es4 iem vigorous performance at bass,midrange and treble; bass,mids and treble is rich and energetic,mid-frequency density increased by 30% than traditional,the details of the performance is particularly rich,crisp sweet.
The es4 twisted cable is improvement over the older KZ cable,flexible and sturdy with a good strain relief and right angle plug.The sounds signature is balanced,coherent top to bottom with good deep solid bass,clear mid range and beautiful high frequencies.
KZ es4 has the memory ear thing ,so they hold their shape around the ear, it works great, perfect for over the ear iems as it keeps the cable from resting or pulling down on your ears.So the cable would be good for athletic use,workouts, sports.
OneYear ProtectionTime: Yinyoo Audio have the Formal authorization from KZ company, all products are original.you will get one year protective time and friendly customerservice from the date of purchase only when you buy from Yinyoo.

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