{"product_id":"xceefit-mini-rechargeable-sound-amplifier-adjustable-tone","title":"XceeFit Mini Rechargeable Sound Amplifier – Adjustable Tone","description":"\n\u003ch2\u003eXceeFit Mini Rechargeable Personal Sound Amplifier\u003c\/h2\u003e\n\u003cp\u003eExperience clearer, fuller sound with the \u003cstrong\u003eXceeFit SDB-01 Mini Rechargeable Sound Amplifier\u003c\/strong\u003e. Designed with a discreet, in-ear form factor, this compact device features adjustable tone modes and four volume levels so you can tailor the sound to your preference — whether you're enjoying conversation, watching TV, or staying engaged in everyday environments.\u003c\/p\u003e\n\n\u003cp\u003eNo disposable batteries required — simply recharge via USB and enjoy up to \u003cstrong\u003e40 hours of use\u003c\/strong\u003e on a single charge.\u003c\/p\u003e\n\n\u003cp\u003eMade in China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRechargeable Design:\u003c\/strong\u003e Built-in rechargeable battery — no need to buy or replace disposable batteries. Charges fully in 4–6 hours (8 hours recommended for the first charge).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUp to 40 Hours of Use:\u003c\/strong\u003e Long battery life means you can wear it all day with confidence.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Tone Modes:\u003c\/strong\u003e Switch between Low Frequency Compression (H) and Normal (N) mode to match your listening environment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4-Level Volume Control:\u003c\/strong\u003e Gradually increase the volume from low to high for comfortable, personalized amplification.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiscreet \u0026amp; Comfortable Fit:\u003c\/strong\u003e Sleek, in-ear design sits snugly in the ear canal. Includes 3 earplug sizes for a secure, comfortable fit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDigital Sound Processing:\u003c\/strong\u003e Internal speaker delivers smooth, clear audio with minimal distortion.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eModel: SDB-01\u003c\/li\u003e\n  \u003cli\u003eMax OSPL: ≤129dB ±3dB\u003c\/li\u003e\n  \u003cli\u003eMax Sound Output: 117dB ±4dB\u003c\/li\u003e\n  \u003cli\u003eMax Sound Gain: 38dB ±5dB\u003c\/li\u003e\n  \u003cli\u003eFrequency Range: 450Hz – 3000Hz\u003c\/li\u003e\n  \u003cli\u003eTotal Harmonic Distortion: ≤10%\u003c\/li\u003e\n  \u003cli\u003eInput Noise: ≤28dB\u003c\/li\u003e\n  \u003cli\u003eCharging Time: 4–6 hours (8 hours for first charge)\u003c\/li\u003e\n  \u003cli\u003eAvailable Use Time: Up to 40 hours (varies with amplification level)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMode \u0026amp; Volume Guide\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOFF\u003c\/strong\u003e — Power off\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eH\u003c\/strong\u003e — Low frequency compression mode\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eN\u003c\/strong\u003e — Normal usage mode\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1–4\u003c\/strong\u003e — Volume levels (1 = lowest, 4 = highest)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eClean the ear canal before use.\u003c\/li\u003e\n  \u003cli\u003eCharge the device fully, then turn the dial to \u003cstrong\u003eN\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003eStart with the volume at its lowest setting and gradually increase.\u003c\/li\u003e\n  \u003cli\u003eTry the included earplugs (S\/M\/L) and select the size that fits snugly with no air gaps.\u003c\/li\u003e\n  \u003cli\u003eInsert the amplifier into the ear canal and gently press to fully seat the eartip.\u003c\/li\u003e\n  \u003cli\u003eIf you notice feedback or whistling, re-seat the device or try a larger earplug size.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eTips to Minimize Feedback \/ Whistling\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAlways start at the lowest volume and gradually increase.\u003c\/li\u003e\n  \u003cli\u003eEnsure the eartip fully seals the ear canal — an airtight fit reduces feedback.\u003c\/li\u003e\n  \u003cli\u003eClean your ear canal before inserting the device.\u003c\/li\u003e\n  \u003cli\u003eAfter inserting, press and hold the device gently for 1–2 seconds to allow the eartip to fully expand.\u003c\/li\u003e\n  \u003cli\u003eTry a slightly larger earplug size if whistling persists.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Usage Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUse the included USB charging cable with a 1–2A charging head (charging head not included — a standard USB wall adapter is recommended).\u003c\/li\u003e\n  \u003cli\u003eDo not use an incompatible charger, as this may damage the device.\u003c\/li\u003e\n  \u003cli\u003eTurn off the amplifier when not in use to preserve battery life.\u003c\/li\u003e\n  \u003cli\u003eKeep the eartips clean and dry after each use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Sound Amplifier (SDB-01)\u003c\/li\u003e\n  \u003cli\u003e3× Earplugs (Small, Medium, Large)\u003c\/li\u003e\n  \u003cli\u003e1× USB Charging Cable (charging head not included; use 1–2A adapter)\u003c\/li\u003e\n  \u003cli\u003e1× User Manual (language may vary)\u003c\/li\u003e\n  \u003cli\u003e1× Black Storage Box\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/3d-sleep-mask-soft-breathable-light-blocking-eye-mask\"\u003e3D Sleep Mask – Soft Breathable Light-Blocking Eye Mask\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/4d-cloud-sports-insoles-breathable-pu-cushion-men-women\"\u003e4D Cloud Sports Insoles – Breathable PU Cushion for Men \u0026amp; Women\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Does the XceeFit SDB-01 sound amplifier require disposable batteries?\u003c\/h4\u003e\n\u003cp\u003eA: No. The XceeFit SDB-01 features a built-in rechargeable battery that is charged via the included USB cable. A full charge takes 4–6 hours (8 hours recommended for the very first charge) and provides up to 40 hours of use, so you won't need to purchase replacement batteries.\u003c\/p\u003e\n\u003ch4\u003eQ: Why does the device produce a whistling or howling sound, and how can I stop it?\u003c\/h4\u003e\n\u003cp\u003eA: Whistling (feedback) occurs when amplified sound re-enters the microphone — a common characteristic of compact in-ear amplifiers. To minimize it: start at the lowest volume and increase gradually; use a larger earplug size to create a better seal; and press the device gently into the ear canal for 1–2 seconds after insertion to ensure the eartip is fully expanded. A snug, airtight fit is the most effective way to prevent feedback.\u003c\/p\u003e\n\u003ch4\u003eQ: What eartip sizes are included, and how do I choose the right one?\u003c\/h4\u003e\n\u003cp\u003eA: The package includes three earplug sizes (Small, Medium, and Large). Start with the medium size and test for comfort and seal. If you experience feedback or the device feels loose, try the next size up. The correct size should feel snug and create a complete seal in the ear canal without discomfort.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use any USB charger with this device?\u003c\/h4\u003e\n\u003cp\u003eA: The device is compatible with a standard USB charging head rated at 1–2A (not included in the package). Using an incompatible or excessively high-current charger may damage the device, so it's important to use an appropriate adapter.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Does the XceeFit SDB-01 sound amplifier require disposable batteries?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. The XceeFit SDB-01 features a built-in rechargeable battery that is charged via the included USB cable. 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