Specification

• Model: GY-GPS6MV2
• Based on u-blox NEO-6M GPS module with on-board backup battery and built-in EEPROM
  
• Comes with external U.FL ceramic antenna for better reception
  
• Operating Voltage: 3.3V
  
• Interface: RS232(TTL level, 3.3V for 'H', 0V for 'L')
  
• Default baud rate: 9600bps
  
• Receiver type: 50-channel u-blox 6 engine
  
• Acquisition: Cold start: 27s
  
• Aided start: < 3s>
• Hot start: 1s
  
• Dimension: 25mm x 35mm

See this video guide: YouTube