Specification:
1. Brand and model: NICEHCK NX7 Pro in ear earphone
2. Product type: In ear
3. Frequency: 20-25000Hz
4. Impedance: 58Ω (On the SPECIHICATIONS page, no 58Ω option, in fact it is 58Ω)
5. Cable material: 16 cores pure copper
6. Cable length: 1.2m±3cm
7. Plug type: 3.5mm gold plated
8. Connector: 0.78mm 2Pin
9. Facepanel color: Silver/red/blue replaceable
10.Sensitivity: Silvery filter 107dB/mW;red filter 108dB/mW;blue filter 105dB/mW
11.Driver unit: 4BA+2DD(Dual Carbon Nanotube Dynamic)+Piezoelectric Ceramics Driver, hybrid 7 units each side.

Compared with NX7, NX7 Pro upgrades the following aspects:
①Replaceable tuning filters:
Equipped with replaceable tuning filters in silver, red and blue, users can enjoy 3 kinds of sound style!
Silver filter: balanced style;red filter: mid-high frequency style;blue filter: heavy bass style
②Replaceable facepanels:
Equipped with replaceable facepanels in silver, red and blue, NX7 Pro becomes more playable.
③Standard 16 cores copper cable:
Equipped with 3.5mm 2Pin high quality 16 cores of pure copper cable, the retail price of this 16 cores cable is more than US $30.
④Better external packaging and more abundant accessories(come with a nice earphone box)




Usage tips:
1. Please use professional HIFI player to drive it, so that NX7 Pro can fully exploit its potential.
2. Please burn it at least 100 hours, the sound quality will be more amazing.
3. We suggest you use better ear tips(such as AET07 and SpinFit CP145).
4. Take out of the attached screwdriver, counterclockwise, you willll take off the facepanel.
5. When installing the screws, dont use excessive force, and stop immediately after turning to the appropriate position.