Coupons and Discounts

We occasionally offer discounts and special promotions. This page explains how DUODIAN coupons work and what to expect.

Common Ways to Save

• Newsletter offers: Subscribe to receive occasional deals and product updates.
• Seasonal promotions: Limited-time discounts during holiday events.
• Bundle savings: Promotions on accessories or multi-item orders when available.

How to Use a Coupon Code

1. Add items to your cart.
2. Proceed to checkout.
3. Enter your coupon code in the discount code field and apply.
4. Confirm the discount is reflected before completing payment.

Coupon Rules (Typical)

• One coupon per order unless stated otherwise.
• Coupons may not stack with other promotions.
• Some items (e.g., clearance items, spare parts, shipping surcharges) may be excluded.
• Coupons have an expiration date and may be limited to specific regions.