The Sennheiser CX 300S Pure Bass wired earphone in Black — German-engineered closed-back transducer technology delivering detailed sound reproduction and enhanced bass response. 17Hz–21kHz frequency response, 18Ω impedance. Four eartip sizes (XS/S/M/L) for a customised in-ear seal. Single-button smart remote with built-in microphone. Tangle-resistant flat cable with L-shaped 3.5mm connector. Storage pouch included.
✓ Sennheiser transducer technology — detailed sound with enhanced bass
✓ Four eartip sizes (XS/S/M/L) — passive noise isolation, personalised fit
✓ 18Ω low impedance — compatible with all smartphones, tablets and laptops
✓ Smart remote + mic — call-ready across all devices · storage pouch included
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