Wired earphones Jack 3,5 mm Sennheiser CX 300S black
Sennheiser CX 300S (S508594) in-ear headphones with a built-in microphone and smart remote are a wired model delivering dynamic, detailed sound and effective isolation from ambient noise. Thanks to a frequency response of 17–20 000 Hz, high dynamics of 118 dB and an ergonomic design, they are ideal for listening to music and taking calls.
Closed in-ear design combined with flexible eartips effectively blocks outside sounds. Passive noise isolation lets you focus on music even in noisy surroundings – on public transport, in the office or while walking. The ergonomic shape ensures a stable and comfortable fit in the ear.
The model features dynamic drivers with Sennheiser technology, which deliver deep bass, clear midrange and crisp treble. The 18 Ω impedance means the headphones work well with smartphones and other portable devices, providing adequate power and clarity.
Built-in microphone and inline remote let you take calls conveniently without reaching for your phone. The cable length of 1,2 m is designed to reduce tangling and improve durability in everyday use. The set includes interchangeable eartips in four sizes (XS, S, M, L) and a practical storage case.
Specifications: Type: closed in-ear headphones Connection type: wired Frequency response: 17–20 000 Hz Dynamics (SPL): 118 dB Impedance: 18 Ω Microphone: yes Volume control: no Active noise cancellation (ANC): no Connector: jack 3,5 mm Cable length: 1,2 m Foldable design: no Ruggedness: no Water resistance: no Weight: 12 g Package contents: eartips (XS, S, M, L), case, cable with microphone Warranty: 24 months
- Manufacturer
- Sennheiser
- Product code
- GSG-110465
- EAN
- 4044155245066



