Fearless Audio S4
Fearless Audio S4 4BA 2Pin 0.78mm Detachable HiFi Audiophile In-ear Earphone IEMs
Transparent series：K1- K12 (K9，K6，K9+B7，K11, K12 is ready to ship .)
Custom Faceplate :
Type A: A1-B7 is USD25
Type B: F6-F7 is USD30
Type C: C1-E5 is USD35
D: F1-F5,E6-E7 is USD50
Custom Fit : USD60 (Accept physical ear impressions or digital ear impressions files)
Custom orders will be shipped out within 1-2 weeks.
Technical features:adapt 4 drivers 3-way crossover 2 tubes
Sound Feature: S4 is very gratifying in the performance of popular songs. Whether it is low frequency, vocal, and resolution, it is quite satisfactory. The transparent sound quality makes the user have a good experience of the favorite music.
Driver:5 balanced armature driver(A Sonion compound low frequency, an independent Knowles intermediate frequency, an independent Knowles high frequency)
Passive noise reduction：26DB
Will be shipped via DHL/UPS/EMS/FEDEX .
It is required to put your phone number on the parcel, please leave me your contact number when you pay.
All listed items will be shipped though Registered Airmail with tracking number if there is no extra shipping method option listed in the product page.
Economy shipping: Will be shipped without tracking number.
Registered Airmail : Will be shipped via such as Hong Kong post , Deutsche Post , Netherlands Post , Singapore Post, you can leave us a message if you have any requirement about the shipping method .
It will be shipped via Hong Kong Post by default, Europe countries can choose to be shipped via Deutsche Post or Netherlands Post, it is also FREE, pls leave us a message if needed.
Express service: Will be shipped via DHL/EMS/UPS/FedEx