The feature of flashing paper cards refers to a type of greeting card or promotional card that incorporates flashing lights or LEDs. These cards typically have a button or switch that activates the flashing feature, creating a visual display that captures attention and adds excitement to the card. One of the main features of flashing paper cards is their ability to grab the recipient's attention. When the card is opened or the button is pressed, the flashing lights or LEDs activate, instantly drawing the recipient's focus and piquing their curiosity. This feature makes flashing paper cards ideal for promotional purposes or special occasions where a memorable impact is desired. Another feature is the customization options available for these cards. Customers can choose the design, colors, and placement of the flashing lights or LEDs to create a customized and eye-catching card. This allows individuals or businesses to tailor the card to their specific needs, such as incorporating their logo, a specific message, or matching a specific theme. Additionally, flashing paper cards often come with a sound component, enhancing the overall experience. These cards may include a pre-recorded message, a song, or a sound effect that plays when the card is opened or alongside the flashing lights. The combination of visual and auditory elements makes these cards more engaging and memorable.