In Ear Wired Earphones MMCX Music Hi-Fi Heavy Bass Monitor Headphones Earbuds Detachable Upgrade Cable

Features:
Mids frequency: Two FDK-60718 is a unit specifically customized for BGVP,it is a combination of the 30017 and 60318 unit, which can greatly increase the density of thevocals, reduce harmonic distortion, bringing you a more attractive vocal performance. 
The fourth generation of DLP 3D printing technology: NS9 adopts a new 3D printing frame structure, combined with our tuning experience and mature acoustic principles. 
Precised electronic four-crossway frequency distribution: NS9 contains an exquisite frequency divider circuit, eight high-precision Murata capacitors are constructed into an exquisite four-crossway frequency divider system, which guarantees three frequency sounds balanced, high density vocals, ear forgiving，better separation and clarity，a rich layer of sound is fully presented in your mind. 
  
Specification:
Model: NS9; 
Drive unit: 7BA + 2DD(7 Balanced Armature+Dynamic Drive); 
Color: Black Gold, Blue, Suikong Gray; 
Frequency response range: 10-40000Hz; 
Audio interface: 3.5 mm audio interface; 
Wire control function: wireless control; 
Interface type: straight; 
Sensitivity: 107dB/mW; 
Impedance: 20Ω; 
Distortion rate: â‰?.5% (1kHz); 
Sensitivity: 107dB SPL/MW; 
Channel difference: â‰?dB (20-10kHz); 
Frequency response: 10Hz-40kHz; 
Cable length: 1.2m±5%; 
  
Packing list:
1 * Earphones; 
1 * Manual