一,Clarify Core Requirements

1. Installation Dimensions
   The most critical aspect is the installation size, which must fit precisely. Common sizes include 27mm, 32mm, 37mm, etc.
2. Shape and Activation Mode
   • Shapes: Round, square, or special designs.
   • Activation: Non-touch or push-type. Define the installation environment (e.g., public vs. residential).
3. Functional Needs
   Common functions include floor selection, door control, elevator calling, alarm/paging, etc.

二,Focus on Additional Details

1. Material Selection
   • Common materials: Stainless steel, acrylic, plastic.
   • Color options: Stainless steel in gold, titanium black, etc. The material affects both durability and aesthetics.
2. Design Elements
   • Character style: Raised or flat.
   • Braille compatibility: Essential for accessibility.
   • Character color: Choose based on visibility needs.
3. Illumination Color
   Common choices: White, red, blue, green light, etc.