Specification -GPS Chipset: SiRF Star III -Frequency: L1, 1575.42 MHz -Code: C/A Code -Channels: 20 -Sensitivity Tracking:-159dBm -GPS Antenna Type: Built-in ceramic patch antenna (18 x 18 x 4mm) -Acquisition Rate: Hot start 1 sec., average/Warm start 38 sec., average/Cold start 42 sec.,average/Reacquisition -Protocol: GPS Protocol NMEA 0183v3 GGA (1sec), GSA (1sec), GSV (5sec), RMC (1sec), GLL, VTG isoptional -Baud Rate: 4800 bps -USB Protocol: USB 2.0 -Operating Systems: Windows 98 / 2000 / XP / Vista / 7/Mac OS 8&9 / Mac OS10/Linux 7.3 / 8.0 /9.0 -Power: Voltage DC 5.0V, USB bus power; Current: -Package included: 1 * GPS USB dongle, 1 * USB cable, 1 * Software CD, 1 * English user manual -PLEASE NOTE: This product requires a lead time of 10 to 14 days.