Pocket Size SiRF Star III Moudule Bluetooth connector 3-color LED status indicators Able to conjoin Pocket PC, Cellphone and Laptop Support WAAS and ENGOS Specification: GPS chipset: SiRF Star III Integrated patch antenna Bluetooth: ST Micro 2415/2150 TTFF: Cold Start 42s/ Warm Start 38s /Hot Start 1s (average) GPS output format: NMEA0183 V3.01 20 Channels Interface: Compatible Bluetooth Serial Port Profile (SPP): V1.1 and class 2 Positioning accuracy: 2DRMS: approx. 2m Tracking sensitivity: -152dBm (average) or less Acquisition sensitivity: -139dBm (average) or less in Normal mode Dimension: 73.4 x 39.0 x 18.9 mm (L x W x H) Weight: 200 grams