Specifications:

Brand: Hifiman

Product model: HE-R9

Support transmission protocol: LDAC, APTX-HD, APTX, AAC, SBC

Transmission method: Bluetooth / USB type-C

Signal-to-noise ratio: 114db

Bluetooth battery life: more than 8 hours

Earphone:

Frequency response range: 15HZ-35KHZ

Impedance: 32Ω

Sensitivity: 100dB

Net weight: 328g

Interface: Bilateral 3.5mm

Compatible with a 3.5mm pro interface on the left;

Bluetooth:

Bluetooth: Bluetooth 5.0, Bluemini R2R advanced active headphone adapter (Net weight: 25g)

Bluetooth chip: Qualcomm QCC5124

DAC: HIFIMAN Himalaya

Frequency response range: 20h-20khz

Features：

Topology diaphragm speaker unit:

Super-strong rare earth magnet, a guarantee of extremely high sensitivity; high-tech single crystal voice coil; Topology diaphragm, high-frequency direct impact 35khz. Nanoparticles are coated on the surface of the diaphragm according to a certain geometric shape, and different shapes have significant changes to the tone.

Elegance without losing strength:

The outer part of the headwear is covered with a full leather design, which is soft and elegant. The inside is memory foam, and the thickness has been specially measured to achieve a comfortable fit and elasticity. The head beam frame is made of a solid steel frame, which has both lightweight and strong.

Both, open and closed:

The wine-red round ear cups have a sense of mystery. The full space inside the ear cups brings a powerful equivalent volume and sufficient breathing space to the powerful driving unit.

Wired/Bluetooth connect-dual compatibility mode:

The default wiring is 3.5mm wiring, and the left side can also be connected to a single-ended balanced 3.5mm wire. The Bluetooth module Bluemini R2R that comes with the machine can be directly connected to the left jack for easy use.

Bluemini R2R:

Bluetooth DAC with R2R architecture and Headphone Amplifier。

The mini figure has powerful sound quality. It uses the Himalayan DAC module developed by HIFIMAN, which is small in size, ultra-power-saving, and has a thicker tone.

What's in the box:

1 x Hifiman HE-R9 closed moving coil topology diaphragm HIFI headphones

1 x Bluemini R2R adaptor

1 x 3.5 to 2 x3.5mm audio cable

1 x USB type-C to USB charging cable

1 x User manual 

1 x Warranty card

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