Sennheiser mm50 IP Earphone in ear noise attenuation

Best bass experience and noise attenuation
 
High-performance dynamic speaker systems for superior, bass-driven stereo sound
 
Highest passive attenuation of ambient noise
 
Outstanding wearing comfort on the go
 
Superior fit in the ear canal due to enhanced ear adapters in different sizes
Extremely small and lightweight
 
Volume control integrated into the cable
 
Cable clip, cable winder, and carrying pouch for convenient handling and storage
 
Technical Data:  Jack plug 3.5 mm jack, angled
Impedance 2,2 K Ohm
SPL (1kHz, 1Vrms): 106 dB:
Frequency response 18 - 22,000 Hz
Pick-up pattern omnidirectional
Sound pressure level (SPL) 113 dB (SPL)
Sensitivity  -44 dB v / Pa

Other details:
Colour: Black with chrome highlight
Ear coupling: In-the-ear
Cable length (asymmetric): 1.0-1.3 m / 3.3-4.3 ft
Connector plugs: 3.5mm 4 poled jack plug
In package:

MM 50 iP Headset
3 pair earbuds (L/M/S)