The Phonon 4000 are the mobile, more portable version of the SMB-02. These have a slight emphasis on the bass frequencies perfect for DJ booth mixing and also for streaming music. They have shorter chord and fold into themselves.
Type Air-tight fully enclosed dynamic headphone.
Output sound level 100dB/mW
Playback frequency range 20 – 20,000Hz
Maximum input 1,300mW
Weight (including cable and plug) 300g
Plug ?6.3 / ?3.5mm gold-plated screw-type stereo 2 ways plug
Connection cable length (material) 3m (4 wires-type L/R independent ground wire connection)