Piston Iron Dual Audio Driver Edition Earphones for Xiaomi

Moving-coil sounder unit extend all the trebles' abundance.
Moving-iron  sounder unit extend bass surge.
Moving-iron and moving-coil sounder unit equal this xiaomi earphone express much more music details.
 
Composite metal diaphragm with the Sandwich design which balance the middle-low frequency fidelity.
Luca Bignardi(the Grammy recording master) toned for this earphone, which hope to every can enjoy music with this Mi dual sounder unit earphone. 

Precise CNC process for the unibody cutting, whose accuracy is up to 0.001mm. 
Fine 0.14mm CD pattern brings you the metal luster.
 
In-line three-button remote control and one button for Microphone. 
Kevlar wire material which is wearable and anti-tangle. 
 
Headphone Type: In-ear
Line-in control: Yes 
Color: Silver
Wire core material: enamelled copper wire
Speaker Impedance: 32Ω
Weight: 14g
Cable length: 1.25m
Headphone Sensitivity: 101dB
Plug Type: 3.5mm gold plated
Rated power: 5mW
Implementation of the standards: GB / T 14471-2013
Frequency range: 20-20,000Hz