{"product_id":"sennheiser-cx300s-pure-bass-wired-earphone","title":"Sennheiser CX300S Pure Bass Wired Earphone","description":"\u003cp\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003eSennheiser CX300S Pure Bass wired earphone in Black\u003c\/strong\u003e - 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eSennheiser transducer technology - detailed sound with enhanced bass\u003c\/li\u003e\n\u003cli\u003eFour eartip sizes (XS\/S\/M\/L) - passive noise isolation, personalised fit\u003c\/li\u003e\n\u003cli\u003e18Ω low impedance - compatible with all smartphones, tablets and laptops\u003c\/li\u003e\n\u003cli\u003eSmart remote + mic - call-ready across all devices · storage pouch included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003eSennheiser CX300S Pure Bass Wired Earphone\u003c\/strong\u003e brings German audio engineering to an accessible in-ear earphone, applying the closed-back dynamic transducer principles Sennheiser has developed across decades of professional and consumer audio products. The transducer - Sennheiser's term for the driver assembly - uses a precision-wound voice coil, purpose-designed cone and carefully tuned rear acoustic chamber to deliver a frequency response of 17Hz to 21kHz. The low end extends below the threshold of human hearing, capturing the sub-bass energy that communicates physical weight and scale in music. The closed-back design means the rear of the driver is acoustically isolated, preventing rear-wave interference from degrading bass definition. At 18Ω impedance, the CX 300S is fully compatible with the output stages of smartphones, tablets and laptops - no external amplifier required, and sufficient sensitivity for high volume from any standard device. Four eartip sizes - XS, S, M and L - provide the individualised fit that in-ear earphones require: the correct tip creates the acoustic seal on which bass response and passive noise isolation depend. The single-button smart remote handles play\/pause and call answer\/end across all devices. The flat cable resists tangling. The L-shaped 3.5mm connector sits flush at an angle against the phone when pocketed, reducing strain on the connector. A storage pouch is included. Genuine Sennheiser. 1-year warranty.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand \/ Model\u003c\/td\u003e\n\u003ctd\u003eSennheiser CX 300S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColour\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransducer Principle\u003c\/td\u003e\n\u003ctd\u003eDynamic · closed-back\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e17Hz - 21,000Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e18 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003e3.5mm L-shaped mini jack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable\u003c\/td\u003e\n\u003ctd\u003e1.2m flat (tangle-resistant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRemote\u003c\/td\u003e\n\u003ctd\u003eSingle-button smart remote (play\/pause · answer\/end calls)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMicrophone\u003c\/td\u003e\n\u003ctd\u003eBuilt-in (inline)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEartips\u003c\/td\u003e\n\u003ctd\u003eXS \/ S \/ M \/ L silicone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eAny device with 3.5mm jack - Android, iPhone (adapter), PC, laptop, tablet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 Year Sennheiser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003ch3\u003eBox Contents\u003c\/h3\u003e\u003c\/div\u003e\n\u003cdiv\u003eSennheiser CX 300S earphones - Black\u003c\/div\u003e\n\u003cdiv\u003eEartip set - XS \/ S \/ M \/ L silicone\u003c\/div\u003e\n\u003cdiv\u003eStorage pouch\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eCondition\u003c\/p\u003e\n\u003cp\u003eBrand New - Retail Packaging\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eWarranty\u003c\/p\u003e\n\u003cp\u003e1 Year Sennheiser\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eDelivery\u003c\/p\u003e\n\u003cp\u003e4-5 Working Days · Fully Tracked\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sennheiser","offers":[{"title":"Default","offer_id":54618436829521,"sku":"508593","price":22.89,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1066\/3228\/2449\/files\/2818858306.webp?v=1787098255","url":"https:\/\/www.wiredsupplyco.com\/products\/sennheiser-cx300s-pure-bass-wired-earphone","provider":"WiredSupplyCo","version":"1.0","type":"link"}