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9mm driver unit MDR-XB21EX headphones with direct vibe structure for superior sound isolation and deep bass, and angled earbud structure for a comfortable fit.

Direct Vibe Structure provides an acoustically-tight seal for superior sound isolation and deep bass sound
Angled earbud structure for stable and comfortable fit
4 sizes of hybrid silicone rubber earbuds for secure fit and long-term wearing comfort (SS, S, M, L)
Durable flat cord
Carrying pouch supplied

Type	Dynamic, Closed

Driver Unit	9mm, Dome type (CCAW)

Sensitivity	103dB/mW

Power Handling Capacity	100mW

Impedance	16ohms at 1kHz

Frequency Response	5-23,000Hz

Diaphragm	PET

Magnet	Neodymium

Cord	Y-type, flat cord

Cord Length	1.2m

Plug	L shaped stereo mini plug (Gold)

Weight (Without Cord)	Approx. 4g

Supplied Accessories	Hybrid silicone rubber earbuds (SSx2, Sx2, Mx2, Lx2), Carrying Pouch, Clip, Operating Instructions