A Better Resolution in Human Voice The theory of dual dynamic drivers is that it can better analyze the sweetness, sexy and vicissitudes of human voice in music. A great Dynamic Embodiment in Music Rhythm As personalized earphones, audiophiles who want the best sound are always fond of them in that double drivers are clearer than the single driver in the sound quality. Exquisite Packaging Equipped with a beautiful box and a small portable bag, convenient for you to storage your headphones. Three sizes ear tips for your choice, eliminating your worries about the improper size when you wear the earphones. Spec: Brand: Langsdom Name: Dual Dynamic Driver Headphones Color: Rose Gold Model: D2 Headphones Type: In-Ear Impedance: 32 Ω Frequency Response Range: 20-20KHz Sensitivity: 95dB Plug Type: Jack 3.5 mm Headphones Cable Length: 1.25 mm Drive Unit: Double 8 mm unit