User Manuals, Instructions and Guides for Vanzone products.
Vanzone S1990 Sleep Bluetooth Speaker Instructions
Discover the comprehensive instructions for the Vanzone S1990 Sleep Bluetooth Speaker in this user manual. Learn how to power on, switch between Bluetooth and TF card modes, control music playback, set alarms, adjust volume, and more. Find answers to FAQs about the S1990 model's features and functionalities.