LED Keychain - Mass-energy equivalence [E=mc²] (Science)

Mass-energy equivalence [E=mc²] LED Keychain, which is a part of our Science collection. 🧪🪐

This is a perfect solution to enlighten your key collection. It can be the perfect gift for your fellow friends and family. 🎁

We do custom designs for all our products, so please do not hesitate to contact us through our website, email or socials. 📩

Pros:

• 7 RGB/multi-colour options
• Fade/flash lighting modes
• Working up to 4~6 hours
• High-quality, durable acrylic
• Less expensive source

Included:

• x1 Custom Acrylic Design
• x1 Key Ring and Hook (attached)
• x1 LED Bud (Built-in li-ion battery)
• x1 Mini USB Charge Cable

Specification:

• Materials: Perspex, Plastic and Metal
• Overall size (w/o Key Ring and Hook): 4.5cm high x 4cm wide
  
• Acrylic thickness: 4.5mm

[Please note: The image above is a digitally designed preview image only]