It is V2 New BittBoy with the latest customized firmware installed. Supporting more games.

Micro SD Kit: NEW BITTBOY + 8GB Micro SD

Features:

• Loads games from MicroSD card (no games preloaded inside the device)
  
• Supports game types:  NES/GB/GBC/GBA/SNES/SMD/SMS/PCE/NEOGEO
  
• Save/Load game progress
  
• 3.5mm Headphone Jack
  
• Adjustable screen brightness
  

Specification:

- Color: GB style

- Material: ABS 

- size at 6.8x9.9x1.3cm

- 2.4" IPS Display screen

- Languages: English 

- Supports NES/GB/GBC/GBA/SNES/SMD/SMS/PCE/NEOGEO

- 700mAh lithium battery

Package Contains: 

- New BittBoy
- USB charging cable