The GlobalSat BT-359cs Bluetooth GPS Receiver contains the latest SiRFIII Low Power Chipset for high sensitivity. It communicates with Host Platforms (PDA, Laptop, and etc.) via Bluetooth Serial Port Profile. With Bluetooth version 2.0 and built-in ceramic patch antenna, the BT-359 provides faster acquisition times and improves accuracy in urban canyons and under dense foliage. It contains a replaceable battery with a large capacity, which enables the BT-359 to operate for up to 11 hours. A slide battery lid makes it easy to remove and replace the battery without the use of tools. It also supports WAAS and EGNOS for even greater accuracy.