{"product_id":"in-ear-subwoofer-headphones-with-20hz-20khz-frequency-response-115db-sensitivity-3-5mm-american-standard-jack-white-wired-earphones-for-music-and-calls","title":"In-Ear Subwoofer Headphones with 20Hz-20KHz Frequency Response, 115dB Sensitivity, 3.5mm American Standard Jack, White Wired Earphones for Music and Calls","description":"\u003ch1\u003eIn-Ear Subwoofer Headphones with 3.5mm Jack and 20Hz-20KHz Response\u003c\/h1\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"White in-ear subwoofer headphones with 3.5mm American standard jack and 20Hz-20KHz frequency response\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/2106\/2025-09-28\/original-image\/1412919554825.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThese in-ear subwoofer headphones are a wired earphone option for listeners who want a straightforward plug-in pair. The source information states a 20Hz-20KHz frequency response, a 115 + 3dB sensitivity rating, and a 3.5mm American standard earphone jack. The colour option shown is white. The 3.5mm American standard connection is described as compatible with most devices on the market. That makes these earphones relevant if you are searching for white wired in-ear headphones with a subwoofer-style low-frequency focus, a wide stated frequency range, and a common 3.5mm plug. They are not described as wireless, noise-cancelling, or water-resistant, and no cable length, microphone, driver size, or carry case is confirmed in the source text. The description below sticks to the stated specifications so you can judge whether the connection and frequency range suit your device.\u003c\/p\u003e\u003ch2\u003eFeatures and Construction\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"White in-ear subwoofer headphones with 3.5mm American standard jack and 20Hz-20KHz frequency response\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/2106\/2025-09-28\/original-image\/1558074224380.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThe confirmed features of these earphones are centred on the audio specifications and the plug type. The source text gives a 20Hz-20KHz frequency response, a sensitivity of 115 + 3dB, a 3.5mm American standard jack, and a white colour option. It does not list driver size, impedance, cable length, microphone, or housing material. This section explains those stated points in practical terms without adding unconfirmed detail.\u003c\/p\u003e\u003ch3\u003eMaterial and Build\u003c\/h3\u003e\u003cp\u003eNo housing, cable, or ear-tip materials are given in the source information. What is confirmed is the 3.5mm American standard earphone plug and the white colour option. The plug type matters because it determines which devices the earphones can connect to. The sensitivity figure of 115 + 3dB is also stated, which is the rating provided for how the earphones respond to an audio signal. Because no build materials are listed, this description does not claim specific durability, flexibility, or premium construction. The confirmed construction detail is the 3.5mm jack, alongside the stated sensitivity and frequency response.\u003c\/p\u003e\u003ch3\u003eSize and Practical Fit\u003c\/h3\u003e\u003cp\u003eThese are in-ear subwoofer headphones, so they sit inside the ear rather than over it. No earbud dimensions, cable length, or weight is stated in the source text, so those measurements cannot be confirmed. The practical fit detail that is confirmed is the 3.5mm American standard jack. This is a widely used headphone connection type, and the source text says it is compatible with most devices on the market. If your phone, tablet, computer, or audio player has a 3.5mm socket, that is the connection these earphones are designed to use. The white colour option is also confirmed, which may help if you want earphones that match a white device or accessory.\u003c\/p\u003e\u003ch2\u003eUses and Placement\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"White in-ear subwoofer headphones with 3.5mm American standard jack and 20Hz-20KHz frequency response\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/2106\/2025-09-28\/original-image\/347520178515.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThese earphones are intended for wired listening through a device with a 3.5mm socket. The stated 20Hz-20KHz frequency response and 115 + 3dB sensitivity are the main audio details provided. There is no mention of a microphone, inline controls, or wireless pairing, so the confirmed use case is plug-in audio listening. The sections below cover event or professional use and everyday home use based only on those stated points.\u003c\/p\u003e\u003ch3\u003eEvent or Professional Use\u003c\/h3\u003e\u003cp\u003eFor event or professional settings, a wired 3.5mm earphone can be useful when you need to connect to a mixing desk, laptop, or other audio device that has a 3.5mm output. The source text states a 3.5mm American standard jack and compatibility with most devices on the market, which supports that kind of wired connection. The 20Hz-20KHz frequency response covers low bass through to upper treble, and the stated sensitivity is 115 + 3dB. No professional monitoring certification, detachable cable, or replacement ear tips are mentioned, so those features are not claimed here. The confirmed basis for professional or event use is the 3.5mm plug and the stated frequency range.\u003c\/p\u003e\u003ch3\u003eEveryday Home Use\u003c\/h3\u003e\u003cp\u003eAt home, these white in-ear subwoofer headphones can be used with devices that have a 3.5mm headphone socket, such as a phone, tablet, computer, or portable player, because the source text states a 3.5mm American standard jack compatible with most devices on the market. The 20Hz-20KHz frequency response is relevant if you listen to music with low-frequency content, such as bass-heavy tracks, and the 115 + 3dB sensitivity is the stated rating for the earphones. No volume control, microphone, or wireless mode is confirmed, so calls and remote control functions are not claimed. The practical everyday use is wired listening from a compatible 3.5mm device.\u003c\/p\u003e\u003ch2\u003eBenefits and Buying Value\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"White in-ear subwoofer headphones with 3.5mm American standard jack and 20Hz-20KHz frequency response\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/2106\/2025-09-28\/original-image\/5413570883615.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThe buying value of these earphones rests on the stated 3.5mm American standard plug, the 20Hz-20KHz frequency response, the 115 + 3dB sensitivity, and the white colour option. The source text does not provide price, warranty, pack count, or lifespan information, so those points are not used to support value here. Instead, this section focuses on reuse, low-maintenance wired operation, and the practical reasons the confirmed specifications may suit a buyer.\u003c\/p\u003e\u003ch3\u003eReuse and Low Maintenance\u003c\/h3\u003e\u003cp\u003eAs wired earphones, these use a 3.5mm American standard jack rather than a battery or charging cable, so there is no charging routine stated in the source text. That can make them a simple pair to keep for repeated use with compatible devices. The source text does not give care instructions, so keeping them dry and storing them without pulling on the cable are low-risk practices. The white colour option is confirmed, and the stated frequency response is 20Hz-20KHz. No replacement parts, carry pouch, or cleaning kit is mentioned, so those are not included in the confirmed value. The main low-maintenance point supported by the source is the wired 3.5mm connection.\u003c\/p\u003e\u003ch3\u003eWhy Choose This Product\u003c\/h3\u003e\u003cp\u003eChoose these in-ear subwoofer headphones if you need white wired earphones with a 3.5mm American standard jack and a stated 20Hz-20KHz frequency response. The 115 + 3dB sensitivity is also given in the source information. They are described as compatible with most devices on the market that use a 3.5mm connection, which makes them relevant for phones, tablets, computers, and audio players with that socket. They are not confirmed as wireless, noise-cancelling, water-resistant, or supplied with a microphone. No dimensions, cable length, or driver size is stated. The decision therefore comes down to the confirmed plug type, frequency range, sensitivity rating, and white colour option.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"White in-ear subwoofer headphones with 3.5mm American standard jack and 20Hz-20KHz frequency response\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/2106\/2025-09-28\/original-image\/936036587954.webp\"\u003e\u003c\/div\u003e","brand":"u9cmuw-dx","offers":[{"title":"White","offer_id":58167691673980,"sku":"CJJSWLWL00043-White","price":8.68,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/1685\/3628\/files\/347520178515.webp?v=1794137733","url":"https:\/\/havenmere.co.uk\/products\/in-ear-subwoofer-headphones-with-20hz-20khz-frequency-response-115db-sensitivity-3-5mm-american-standard-jack-white-wired-earphones-for-music-and-calls","provider":"Havenmere.co.uk","version":"1.0","type":"link"}