It used 8mm Dynamic Driver. and Due to the internal resonance to minimize the negative loss.
The nozzle have be at an angle of 15 degrees curve for comfortable.
Was accent to deep middle and bass 
light weight - 17.3g
Plastic & Aluminum, Brass -  used plastic for light and Aluminum, Brass of metallic body see Luxury design.
TPU Cable - Prevent to touch noise and cable entanglement.
you can handsfree funtion via mic controller