Boost your sound with Sennheiser’s CX 300S earphones, which offer amazingly detailed sound reproduction and enhanced bass response thanks to Sennheiser transducer technology. The in-ear design reduces ambient noise to a minimum, and the included set of ear adapters guarantees an individualized fit with four sizes (XS, S, M, L) to choose from. A Smart remote enables you to pause music and take calls across all devices.

Key Features

• Built-in microphone and remote for call and music control.
• Ergonomic In-Ear design for ambient noise isolation and undisturbed listening.
• Tough and tangle-free cable for long-lasting listening enjoyment.

What’s In The Box

• CX 300S earphones
• Ear adapter set
• (XS/S/M/L)
• Storage pouch

General Specifications

• Frequency Response:  17–21,000 Hz (-10 dB)
• Frequency Response (Microphone):  100 – 10,000 Hz (-10 dB)
• Transducer Principle:  Dynamic
• Sound Pressure Level (SPL):  118 dB
• Sensitivity:  118 dB SPL @ 1 kHz, 1V RMS
• Microphone Sensitivity:  44dbV/Pa
• Impedance:  18 Ω
• THD:  <0.5 % (1 kHz, 100 dB SPL)
• Pick-up Pattern:  Omnidirectional
• Earpad Material:  Silicon rubber
• Acoustics:  Closed
• Earpad Size:  XS, S, M, L
• Weight:  12 g
• Cable Length:  1.2 m
• Jack Plug:  3.5 mm angled
• Ear coupling:  Ear-canal