Koss JR 900
Koss JR 900
Top 69%434 points
Top 69%
Top specs and features

Koss JR 900: 9 facts and highlights

1. highest frequency

The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.
Brainwavz Kidwavz KV-100: 2780000000Hz

2. lowest frequency

The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.
Sony MH1CBLK: 1Hz

3. has sound isolation/passive noise reduction

The device sits tightly in place, creating an acoustic seal which reduces background noise and prevents your music from leaking out.
Koss JR 900
45% have it

4. impedance

Impedance is the device’s electrical resistance to the current being pushed through it. The lower the impedance, the easier it is to get higher volume and requires less power.
10 Ohms
Flips Solo 2 Social: 4 Ohms

5. has stereo speakers

Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
Koss JR 900
76% have it

6. Can be used wirelessly

Wireless devices allow users more freedom of movement.
Koss JR 900
21% have it

7. has an over-the-ear form

Comfortable full-size form with earcups that fully enclose your ears. This model is loved for its increased sound isolation and the fact that it won't leak sound to your neighbors. It offers potential for maximum bass and loudness levels.
Koss JR 900
40% have it

8. control panel placed on a device

There is a control panel on the device body, so you can easily access the volume control or remote without having to interact with a cable or another device it's connected to.
Koss JR 900
17% have it

9. has a removable battery

The battery is removable and can be replaced by the user if broken.
Koss JR 900
6% have it

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