HiFi BOY OS V3 - OS V3

HiFi BOY OS V3 2 Balanced Armature + 1 Dynamic Driver Hybrid Audiophile 2pin 0.78mm In-ear Earphones


Balanced Armature & Dynamic Hybrid Driver

  • OSV3 uses 2 Balanced Armature & 1 Dynamic Driver, two-way program, have both vigorous bass and delicate mid & high frequency of dynamic.  7mm composite Dynamic Driver is responsible for the bass and atmosphere, one Balanced Armature is responsible for the mid & high frequency; the other Balanced Armature is responsible for ultra-high frequency, clear sound level, transparent and powerful.

Resin cavity

  • OSV3 made of resin, using high-end custom headphone technology, pure hand-made to complete, with a beautiful shiny appearance.

Extremely easy to drive

  • OSV3 is very easy to drive ensures compatibility with more devices, mobile phones and audio players can easily drive.

Fit Ergonomic

  • OSV3’s shape design referenced a lot of ear type, earphone used streamline, perfectly fit the human ear, superior comfort.

Silver-plated cable

  • High-spec silver wire with 18K gold-plated 0.78mm pins, make the sound more balanced and enduring.


  • Brand: HiFi BOY
  • Model: OS V3
  • Drivers: 2 Balanced Armature & 1 Dynamic Driver (Ultra-high frequency Balanced Armature + high frequency Balanced Armature + 7mm strong magnetic composite diaphragm Dynamic Driver )
  • Impedance: 19 Ohm
  • Sensitivity: 109 dB
  • Frequency response 20Hz-20KHz
  • Cable Length: 1.2 m
  • Plug: 3.5mm rhodium-plated
  • Wire: 5N OFC silver-plated cable
  • Connector: 2pin 0.78mm


  • OS V3 IEM
  • Eartips
  • Carry case

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Free Shipping

This product qualifies for free aimail shipping to worldwide with tracking number.

It will be shipped via Hong Kong Post by defaut , Europe countries can choose to be shipped via Deutsche Post or Netherlands Post, it is also FREE , pls leave us a message if needed .

  • Views: 22103
  • Brand: HiFi BOY
  • Product Code: OS V3
  • Availability: In Stock
  • $159.00

Available Options

Tags: HiFi BOY OS V3, 3drivers, 2BA, Dynamic, Hybrid, 2pin, 0.78mm, Detachable