Model Name: BP-275S GPS type: Receiver and Antenna Frequency: GPS L1 SBAS L1 QZSS L1 Channels: 56 Searching Channel Support Rate: 4800bps to 921600bps,Default 4800bps Data Level: RS232 Level Data Protocol: NMEA-0183 Working VCC: DC Voltage 9.0V-34.0V Typical 12.0V Working Current: Capture 20mA 12V Connector: DIY connector Cable Length: 5m Use: Marine Material:ABS colour:White and black Package Contents: 1 x Boat ship GPS receiver Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.