#Modifications include:

• High-quality aluminium shell
• Superficial anodized and sandblasted
• Reinforced glass and pure transparency for better transmittance
• Laser engraved logo
• Redesigned internal space to protect OLED display
• Removal of NFC antenna

#Bluetooth:

Bluetooth is still available up to a range of 5m albeit wrapped in aluminium shell, signal attenuation of approx. 20-30db (the purple one is original OneKey Classic with plastic shell, the red one with aluminium shell).