YIER

YIER is a dynamic brand specializing in Bluetooth and wireless speakers crafted for users who want powerful sound, stylish design, and modern features without a high price. Their product line includes portable TWS speakers, outdoor party speakers, LED light-show models, bass-boost active units, wood-framed enclosures, multi-connection input options (Bluetooth, AUX, USB, TF card), and durable battery-powered systems. Because audio gear involves electronics (drivers, circuitry, wireless modules), controls, power management, firmware updates, and enclosure materials, owning relevant documentation is important. Manuals cover setup (pairing, inputs), operation (volume, modes, lighting effects), maintenance (battery care, cleaning), safety guidance (water exposure, charging safety), spare parts, and warranty policies. On this YIER category page on ManualsLibraryy.com, you’ll find downloadable user manuals, spec sheets, parts diagrams, quick-start guides, troubleshooting tips, and warranty information. Whether you’re pairing two speakers for stereo sound, replacing a worn cable, fixing LED issues, or merely wanting safe charging instructions, these documents help ensure your YIER product delivers its full potential and stays reliable.

Official Contact Information

• Phone: +1-916-238-6704
• Email: [email protected]
• Website: https://www.yierspeaker.com/

For product manuals or additional support, visit the ManualsLibraryy’s contact page, where a submission form is available to directly connect with our customer service team