FIIO FH5s Hybrid Monitors In-Ear - Black.

[All-New Acoustic Design] 12mm beryllium plated diaphragm + PU gasket dynamic low frequency driver. This driver is capable of deep, powerful, yet controlled bass. [6mm Beryllium Plated Dynamic Mid-Frequency Driver] Significantly increased sensitivity, smoother coherency and reduced distortion - Proven Knowles TWFK-30017 high frequency balanced armature for luxurious, clean and comfortable vocals and exquisite treble. [Semi-open design of rear cavity] Quickly relieves the air pressure in your ears for a more comfortable and long listening session. 【3 Sound Adjustment Switches, 8 Possible Sounds】FH5s adopts electronic crossover technology, and 3 sound adjustment switches allow you to adjust the sound as you want. Impedance, bass, midrange, and treble adjustments vary depending on the music you're listening to and your preferences. 【Twist-lock swappable plug】The twist-lock swappable plug allows you to switch between 2.5mm/3.5mm/4.4mm heads, covering a wide range of scenarios. black.