{"product_id":"portable-plug-in-subwoofer-sound-system-with-card-reader-interface-800mah-battery-capacity-100hz-20khz-frequency-response-and-2-hour-running-time-for-bluetooth-audio-playback-and-usb-drive-music-reading","title":"Portable plug-in subwoofer sound system with card reader interface, 800mAh battery capacity, 100Hz-20kHz frequency response, and 2-hour running time for Bluetooth audio playback and USB drive music reading","description":"\u003ch1\u003ePortable Plug-in Subwoofer Sound System with Bluetooth, USB Playback, and 2-Hour Battery Life\u003c\/h1\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Portable subwoofer sound system with metal casing, Bluetooth connectivity, and USB card reader interface\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US10\/742\/2025-10-02\/original-image\/1527020319225.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThis portable plug-in subwoofer sound system combines wireless convenience with direct media playback functionality in a compact package suitable for general listening applications. With Bluetooth 4.1 connectivity offering a 10-metre effective range, you can stream audio from smartphones, tablets, or computers without physical connections. The integrated card reader interface accepts USB flash drives with up to 32GB of extended storage capacity, allowing direct playback of audio files stored on portable media. Powered by an internal 800mAh lithium battery that delivers approximately 2 hours of running time, this system provides portable audio without constant reliance on mains power. The metal shell construction houses the electronic components while providing a durable outer casing available in multiple colour finishes including black, blue, golden, red, and silver options.\u003c\/p\u003e\n\u003ch2\u003eFeatures and Construction\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Portable subwoofer sound system with metal casing, Bluetooth connectivity, and USB card reader interface\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US10\/742\/2025-10-02\/original-image\/1554300025943.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe portable subwoofer sound system incorporates several key features that support its audio playback functionality across multiple input sources. With 2.1 channel track configuration delivered through a single speaker unit, it reproduces audio across a frequency response range spanning from 100Hz to 20kHz. The system maintains a signal-to-noise ratio of ≥75dB, which helps preserve audio clarity during playback from both wireless and wired sources.\u003c\/p\u003e\n\u003ch3\u003eMaterial and Build\u003c\/h3\u003e\n\u003cp\u003eThe metal shell construction forms the primary housing for the internal electronic components, providing structural integrity and protection for the circuitry inside. This metallic exterior comes in five distinct colour variations including black, blue, golden, red, and silver finishes, allowing selection based on aesthetic preference. The built-in 800mAh lithium battery supplies power for portable operation, eliminating the need for continuous connection to electrical outlets during use. All functional controls operate via button interfaces rather than touch-sensitive or digital controls, with separate buttons provided for power management and speaker adjustment functions.\u003c\/p\u003e\n\u003ch3\u003eSize and Practical Fit\u003c\/h3\u003e\n\u003cp\u003eDesigned as a portable plug-in subwoofer sound system, this unit accommodates general listening applications where mobility and multiple input options are advantageous. The Bluetooth 4.1 protocol enables wireless audio streaming within a 10-metre effective distance from transmitting devices, allowing flexible placement within typical room dimensions. The integrated card reader accepts standard USB flash drives for direct media playback, supporting storage capacities up to 32GB for extended music libraries. With approximately 2 hours of running time provided by the internal lithium battery, the system offers practical portability for short-duration listening sessions without requiring immediate recharging.\u003c\/p\u003e\n\u003ch2\u003eUses and Placement\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Portable subwoofer sound system with metal casing, Bluetooth connectivity, and USB card reader interface\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US10\/742\/2025-10-02\/original-image\/1565848893787.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThis portable audio system serves multiple listening scenarios through its combination of wireless connectivity and direct media playback capabilities. Suitable for general applications rather than specialised professional environments, it provides accessible audio reproduction for personal entertainment, background music, or casual listening situations. The system's portable nature with battery-powered operation allows placement flexibility beyond traditional wired speaker locations.\u003c\/p\u003e\n\u003ch3\u003eEvent or Professional Use\u003c\/h3\u003e\n\u003cp\u003eWhile designed for general rather than professional applications, the portable sound system can support small-scale audio requirements in various settings. The Bluetooth connectivity with 10-metre range allows wireless audio streaming from presentation devices or background music sources during informal gatherings or small meetings. USB flash drive playback via the card reader interface enables pre-recorded audio content without relying on external playback devices, useful for scheduled background music or pre-prepared audio clips. The 2-hour battery life provides sufficient runtime for short-duration events without requiring power access throughout the venue.\u003c\/p\u003e\n\u003ch3\u003eEveryday Home Use\u003c\/h3\u003e\n\u003cp\u003eIn domestic environments, this portable subwoofer system offers convenient audio playback options for various rooms and activities. Bluetooth connectivity streams music from smartphones or tablets during household tasks, leisure time, or casual entertaining without requiring wired connections between devices. The USB flash drive playback function allows direct access to stored music collections without occupying a separate playback device, useful for dedicated music listening or background ambiance. Portability powered by the internal battery enables movement between rooms without concern for power outlet availability, supporting listening in kitchens, bedrooms, studies, or outdoor spaces within the 10-metre Bluetooth range.\u003c\/p\u003e\n\u003ch2\u003eBenefits and Buying Value\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Portable subwoofer sound system with metal casing, Bluetooth connectivity, and USB card reader interface\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US10\/742\/2025-10-02\/original-image\/1952645582158.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe portable plug-in subwoofer sound system provides practical value through its multiple input options, wireless convenience, and battery-powered portability. Combining Bluetooth streaming with USB drive playback creates flexibility in audio source selection, accommodating both modern wireless devices and traditional stored media formats. The internal battery supply supports genuine portability rather than limited mobility within mains power cord range.\u003c\/p\u003e\n\u003ch3\u003eReuse and Low Maintenance\u003c\/h3\u003e\n\u003cp\u003eThe system's design supports repeated use through straightforward operation and minimal maintenance requirements. The rechargeable 800mAh lithium battery can undergo multiple charge cycles to maintain the 2-hour running time capability with proper charging practices. Metal shell construction provides durable housing that resists incidental impacts better than plastic alternatives, potentially extending the unit's functional lifespan. Button-operated controls offer simple, tactile operation without complex digital interfaces that might require technical troubleshooting or software updates over time.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose This Product\u003c\/h3\u003e\n\u003cp\u003eThis portable audio system offers a practical combination of features that address common listening needs without specialised technical requirements. The dual input capability through both Bluetooth wireless streaming and USB flash drive playback provides flexibility in how you access audio content, accommodating both modern wireless devices and traditional stored media. Approximately 2 hours of battery-powered operation enables genuine portability rather than limited mobility restricted by power cord length. With five colour options including black, blue, golden, red, and silver finishes, you can select a visual appearance that complements your existing equipment or room decor.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Portable subwoofer sound system with metal casing, Bluetooth connectivity, and USB card reader interface\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US10\/742\/2025-10-02\/original-image\/2700474837742.webp\"\u003e\u003c\/div\u003e","brand":"test232qf789yh43798g","offers":[{"title":"Silver","offer_id":53706555982161,"sku":"CJXFBXYS00203-Silver","price":40.58,"currency_code":"GBP","in_stock":true},{"title":"Black","offer_id":53706556014929,"sku":"CJXFBXYS00203-Black","price":40.58,"currency_code":"GBP","in_stock":true},{"title":"Red","offer_id":53706556047697,"sku":"CJXFBXYS00203-Red","price":40.58,"currency_code":"GBP","in_stock":true},{"title":"Blue","offer_id":53706556080465,"sku":"CJXFBXYS00203-Blue","price":40.58,"currency_code":"GBP","in_stock":true},{"title":"Golden","offer_id":53706556113233,"sku":"CJXFBXYS00203-Golden","price":40.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1040\/8548\/7953\/files\/1952645582158.webp?v=1778096057","url":"https:\/\/avelmere.com\/products\/portable-plug-in-subwoofer-sound-system-with-card-reader-interface-800mah-battery-capacity-100hz-20khz-frequency-response-and-2-hour-running-time-for-bluetooth-audio-playback-and-usb-drive-music-reading","provider":"Avelmere.com","version":"1.0","type":"link"}