Specification:
Product Name: LED Dot Matrix Hourglass
Dimensions: 109 x 60 x 31 mm
Light Color: Blue
Input Voltage: DC 5V
Time Range: Adjustable Countdown (1–99 minutes)
Welding Difficulty: Moderate

Features:
1. Simulated Particle Flow: Creates realistic sand-like movement using LED technology.
2. Custom Countdown: Programmable timer with a range of 1–99 minutes for versatile use.
3. Built-in Controls: Onboard buttons for adjusting settings and flow speed conveniently.
4. Compact Design: Sleek acrylic frame with a dot matrix display suitable for any desk or shelf.
5. USB Powered: Compatible with 5V USB charging for easy power source access.
6. DIY Soldering Option: Available as a pre-assembled product or as a DIY kit for assembly.

Package Includes:
1 x DIY Kit without case (Note: This is an unassembled kit; you will need to assemble and solder it.)

or

1 x DIY Kit with case (Note: This is an unassembled kit; you will need to assemble and solder it.)

or 

1 x Finished product (Note: This is a pre-assembled kit; no soldering is required.)