Em-trak B952 Class B AIS Transceiver Wifi & BT - B952The B952 is a high transmit power (5W SOTDMA) AIS Class B transceiver that is small, and light weight, yet delivers the very best AIS receive and transmit performance to ensure you are seen by any vessel in all conditions. The B952 uses an ultra low power consumption AIS engine and is ruggedized against extreme shock, vibration, temperature dampness, and water. Features: WiFi & Bluetooth connectivity stream AIS data to smartphones and tablets onboard.