support handsfree calls,volume+-,music songs switch,pause,play

brand new and high quality,long-term use will not be damage

cable in TPE materails: soft and durable,

one Button to control the talk and music.

the price is preferential,You will get what you pay for ( ^_^ ) Sensitivity

Sensitivity works hand-in-hand with the impedance of the headphones. They must correspond to each other because they

both work hand-in-hand to regulate sound and produce clear acoustics without distortion. The sensitivity measured by dB

SPL/mW. The Bigger dB, The higher the sensitivity rating. A high sensitivity will get a wide range of power output, but may

get some distortion at the same time. Low sensitivity is harder to damage and not easy distortion, however, it need your

device have more power output than high sensitivity one. Generally smart phones, tablets, and mp3 players need

a earphone from 85dB to 120dB. It should be noted that at 120 dB, the human ear begins to replace the sensation of

hearing with that of pain.


Most earphone with low impedance (less than 25Ω) require little power to deliver high audio levels. So it can save your

device power. Headphones with higher impedance (25Ω and over) demand more power. But, they are protected from

damage caused by overloading. They can also be used with a wider range of audio equipment.


Frequency response is the range of bass, mids and treble. 20 to 20,000 Hz is generally accepted as the audible frequency

range, this is the standard for most headphones. Some Earphone offer wider ranges (for example, 5 to 33,000 Hz), but

better frequency response does not always mean better sound quality. Below 20 Hz bass frequencies can be felt more so

than heard, treble frequencies over 20,000 Hz are not always audible.

1* Innovation “two-tone chamber” design, effective use of the body cavity reflection reflux stream function, repeated bass gain to the

sound field broad, so bass super fun! Like exposure to the scene, shocking!

2* 10mm sound unit, better listening experience, the new 10mm drive unit to ensure that the hundreds of key channels though

professional mixer, but that we are just here to listen contented condensate.

3* Adjustable splitter, comfortable wearing,In order to effectively avoid the headphone cable wrapped around, you can use the splitter control headphone cable, splitters metal material, headphones and more stylish.

4* Careful choice of materials,Translucent TPE production line anti-material, with internal HOPC high mass of oxygen-free copper wire

core, signal transmission and free balanced, effectively prevent the wire tie, long life and can effectively prevent the “stethoscope” effect,

while ensuring at the same time, pull up to 20 KG, it seems to bring you unique experience.

5* Set thousands of units one Excellent noise reduction, balance and full sound, simple and stylish

(The following are for reference only. Different mobile phone or music player software, will be different.Some phones and music player

software do not supportall the features.)


Press the button: Answer the phone

Long Press the button: Refuse to answer the phone

Press the button when talking: Mute Microphone

Long Press the button when talking: Hung up the phone


Press one time: Play or Pause

Press 2 times: next song

Press 3 times: previous song

Warm tips

continuous use at full output may damage hearing adjust headphones sound to the proper volume,Loud sound may damage your ears ,for

traffic safety,it is dangerous to increase the sound volume too much because you can\'t hear external sounds ;take great care about traffic

around you. please don\'t pull cord too strain in case of breakage.

Package Includes

1* Langsdom jm26 wire-control earphone with microphone

1) We accept Alipay, West Union, TT.All major credit cards are accepted through secure payment processor ESCROW.

2) Payment must be made within 3 days of order.

3) If you can\\\'t checkout immediately after auction close, please wait for a few minutes and retry Payments must be completed within 3 days.

1. WORLDWIDE SHIPPING.(Except some countries and APO/FPO)

2. Orders processed timely after the payment verification.

3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.

4. The images shown are not the actual item and are for your reference only.

5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season.

6. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!

7. Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery.

1. You have 7 days to contact us and 30 days to return it from the date it was received. If this item is in your possession more than 7 days, it is considered used and WE WILL NOT ISSUE YOU A REFUND OR REPLACEMENT. There are NO EXCEPTIONS! Shipping cost is bear by both seller and buyer in half.

2. All returned items MUST BE in the original packaging and you MUST PROVIDE us with the shipping tracking number. 3. We will refund YOUR FULL WINNING BID AMOUNT, upon receipt of the item in its original condition and packaging with all components and accessories included, AFTER BOTH Buyer and Seller cancel the transaction from Mtccitytech.org. OR, you may choose to have a replacement.

4. We will bear all the shipping cost if the product(s) is (are) not as advertised.

  • Frequency Response Range: 20-20000Hz
  • Sensitivity: 101±3dB
  • plug: standard 3.5mm Aux
  • wire material: TPE plastic,LC-OFC copper wire
  • Waterproof: No
  • Line Length: 1.2m
  • Is wireless: No
  • Plug Type: Line Type
  • compatibility: Android/IOS smartphones mp3 ipad PC
  • Function 2: Supports music, Noise Cancelling, Portable
  • Vocalism Principle: Dynamic
  • Active Noise-Cancellation: Yes
  • Resistance: 16Ω
  • Volume Control: No
  • wire style: flat,noodles
  • Connectors: 3.5mm
  • With Microphone: Yes
  • Support APP: Yes
  • sound type : 3D 2-channel stereo
  • Support Apt-x: No
  • Style: In-Ear
  • color: black red,white blue
  • Control Button: Yes
  • support music/songs : switch,pause,play
  • Brand Name: SZKOSTON
  • earbuds type : noise reduction
  • Communication: Wired
  • Support Memory Card: No
  • Function 1: For Routine Office Work, Microphone
  • Function: for Video Game,For Mobile Phone,HiFi Headphone,For iPod
  • Wireless Type: None
  • Model Number: 800250 Langsdom jm21 with mic

  • Unit Type: piece
  • Package Size: 10cm x 10cm x 6cm (3.94in x 3.94in x 2.36in)
  • Package Weight: 0.04kg (0.09lb.)

  • Author: Prmccoma
  • Date: 2018-03-24
  • earphone good, and bass. пришёл order within 17 days.
  • 5/5

  • Author: Paulien Stoop
  • Date: 2018-03-27
  • luxury earphones заказываю second time. satisfied quality. пупырчатый and brand packed in package. two weeks влг area to come. by both seller and recommend.
  • 5/5

  • Author: Jmsdevassy
  • Date: 2018-02-12
  • to seller thank you!!! порадовали headphones i very real! quickly come goods and the quality is very good!!!!!! really super bass!! more'll order from this seller!!!!! more complete earphone hold clothes pin clothes. need to order bass headphone with all good.
  • 5/5

  • Author: Raptorkj
  • Date: 2018-04-02
  • such for headphone неплохие. see проработают how many.
  • 5/5

  • Author: Demesierstervenson15
  • Date: 2018-02-15
  • good bass excellent performance not as поломались (more i month)
  • 5/5