The Sennheiser CX 300-II Precision ear-canal headphones are designed for listeners who want detailed stereo sound with powerful bass in a compact, comfortable design. Their in-ear construction helps reduce surrounding noise through passive noise isolation, making them suitable for listening to music, podcasts and other audio while travelling, commuting or relaxing at home. Featuring dynamic speaker drivers, the CX 300-II Precision delivers a frequency response of 19Hz to 21,000Hz, supporting clear audio reproduction and enhanced low-frequency performance. The carefully shaped ear adapters provide a secure fit and help reduce ambient noise, allowing you to enjoy your favourite content with fewer distractions. The headphones feature a wired connection with an angled 3.5mm stereo jack, making them compatible with devices that have a matching headphone socket. Their 1.2-metre asymmetrical cable is designed for convenient everyday use, while the lightweight ear-canal design makes them easy to carry in a bag or pocket. Finished in black, the Sennheiser CX 300-II Precision combines practical portability with a classic, understated appearance. The package includes multiple ear adapter sizes and a carrying pouch for convenient storage and transport. These headphones are a suitable choice for users seeking reliable wired audio and passive noise isolation without the need for batteries or wireless pairing.