BlueBird 2016 new U3 mini portable headphone amplifier HIFI EXQUIS Class A headset amps OPA2604 high current low noise

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New product


We have Red  and Black color version available.

This is the latest U3 mini, it's with OPA2604 op-amp chip, 

More details



User Interfaces:

  • Input: 3.5mm mini-jack audio input
  • output: 3.5mm mini-jack audio output
  • Charging input: Android USB universal phone charge por
  • Volume controle: sound volume controle knob

Parameters :

  • Impedance headphones supported : 14-320ohm or 12-300ohm(Hifi exquis 1101017)
  • Color options:    Red and black(Hifi exquis 1101017)
  • Battery volume: 2380MA(Hifi exquis 1101017)
  • Dimension: 11X6X1.4cm inculding the knob
    Net Weight:0.1k
  • This headphone is the latest version of bluebird headphone amp,the composants have been updated.(Hifi exquis 1101017)
  • It has a aluminum brushing shell, the appearance have been improved a lot.
  • The sound of U3 mini is more warm ann not tough, it  is more transparent and strong than the tube amplifier.(Hifi exquis 1101017)
  • This latest version has a wide Sound field, High resolution and more details. it is a good background noise control(Hifi exquis 1101017)
  • Using 2380MA lithium battery, it can work 12 hours with charging about 4 hours 
  • This U3 mini has only a OP amp(Hifi exquis 1101017)
  • The manufactor bluebird worked on the headphone for a long time, it focus on the Audio-visual experience and not the parameters.


Product package include:

  • 1 x U3 mini portable Amplifier
  • 1 x 3.5mm to 3.5mm jack audio cable
  • 1 x Bundle tapes
  • 1 x Rechargeable Lithium battery 2380MA(inside)
  • 1 x OPA2604AP op-amp chip(inside)


Note: the android phone USB rechager cable is not include, you could always your phone recharge cable





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