{"product_id":"shidu-portable-voice-amplifier-10w-rechargeable","title":"SHIDU Portable Voice Amplifier 10W Rechargeable","description":"\u003cp\u003e\u003cstrong\u003eThe SHIDU SD-258 is a compact rechargeable personal voice amplifier that delivers clear 10W sound to project your voice across large rooms and crowds without straining your throat.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt for teachers, tour guides, fitness instructors and presenters, the SD-258 balances powerful output with pocket-friendly portability. Its 10W amplifier reproduces speech and music with minimal distortion, while a built-in 1800mAh battery supports all-day use. This unit also doubles as a small wired speaker for phones or computers via its AUX input and supports TF card and USB playback for background audio during lessons or events.\u003c\/p\u003e\n\n\u003ch3\u003eHow loud and how far will this amplifier carry my voice?\u003c\/h3\u003e\n\u003cp\u003eThe SD-258 produces 10 watts of clean output designed to fill classrooms, meeting halls and outdoor groups up to roughly 1100 m² (about 11,800 sq.ft). The sound is engineered to remain clear with no whistling or buzzing at typical speaking volumes, so your voice stays intelligible at a distance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e10W continuous output for clear speech projection\u003c\/li\u003e\n  \u003cli\u003eCoverage suitable for groups up to approximately 120 people\u003c\/li\u003e\n  \u003cli\u003eLow distortion and anti-whistle design for intelligible sound\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat kind of battery life and playback options does it offer?\u003c\/h3\u003e\n\u003cp\u003eA high-capacity 1800mAh rechargeable battery lets the SD-258 run long teaching sessions or guided tours without constant recharging. Expect up to 12 hours of amplification on a full charge and around 10 hours playing music. Charging completes in about 3–5 hours.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1800mAh built-in lithium battery for extended use\u003c\/li\u003e\n  \u003cli\u003eUp to 12 hours voice amplification, 10 hours music playback\u003c\/li\u003e\n  \u003cli\u003eSupports TF (Micro SD) cards and USB flash drives for audio files\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use it with other devices and how portable is it?\u003c\/h3\u003e\n\u003cp\u003eThe amplifier includes a microphone port that doubles as an AUX input, so you can plug in a phone, tablet or computer to use the SD-258 as a wired speaker. At only around 0.36 lbs and with a detachable clip and waistband options, it’s simple to wear or carry for mobile instruction and tours.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3.5mm AUX input for wired audio from phones or laptops\u003c\/li\u003e\n  \u003cli\u003eLightweight design with clip and waistband hanging options\u003c\/li\u003e\n  \u003cli\u003eDurable, wear-resistant exterior built for everyday use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow reliable and serviceable is the unit?\u003c\/h3\u003e\n\u003cp\u003eSHIDU supplies this model with customer-friendly service: a 30-day return option, a 36-month warranty, and lifetime technical support. To avoid signal interference, keep the speaker and mic separated and facing away from each other during operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e30-day return policy and 36-month warranty\u003c\/li\u003e\n  \u003cli\u003eLifetime technical support from SHIDU\u003c\/li\u003e\n  \u003cli\u003eSimple care tip: keep mic and speaker apart to prevent signal issues\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The SHIDU SD-258 is ideal for educators, tour leaders, fitness and yoga instructors, coaches, presenters, and event hosts who need a lightweight, rechargeable amplifier that projects speech and plays background audio. If you teach in noisy rooms, lead outdoor groups, or want to preserve your voice during long sessions, this compact PA delivers useful power and versatile connectivity without the bulk of traditional systems.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long does the battery last on a full charge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Up to about 12 hours for voice amplification and roughly 10 hours when playing music.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use the SD-258 with my phone or laptop?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — use the microphone port as a 3.5mm AUX input to play audio from phones or computers.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SHIDU","offers":[{"title":"Default Title","offer_id":48436886175901,"sku":"B07FLV88J8","price":49.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/shidu-sd258-front-view_f76f2966-038a-4d2d-bddb-d3cde5de1bbe.jpg?v=1781456376","url":"https:\/\/nexoltic.com\/products\/shidu-portable-voice-amplifier-10w-rechargeable","provider":"Nexoltic","version":"1.0","type":"link"}