- Intelligent chip control with multiple modes to cater to your specific needs, providing personalized comfort and efficiency. - Energy-efficient digital display with a large screen, making it easy to see power levels and mode settings at a glance. - Designed for quiet operation, producing minimal sound—perfect for use in bedrooms or quiet spaces, with nearly silent performance from just half a meter away. - Features a high-capacity 700mAh lithium battery (available only in model YSQ750i), ensuring longer usage and automatic shutdown protection to prevent battery drain. Use Scenarios: - Ideal for nighttime use in bedrooms, where a quiet environment is essential for restful sleep. - Perfect for small offices or study areas, keeping noise levels low while maintaining optimal performance. - Great for travel, as its compact design and long-lasting battery make it convenient for use in hotel rooms or during outdoor activities.