Product Name: Bluetooth GPS Receiver (SIRF III, 20 Channels)Model Number: HS-B03Place of Origin: ChinaFeatures: 1) High sensitivity 2) 20CH all in view tracking 3) Fast position fix, cold start 4) Superior urban canyon performance 5) Work with PDA, cell phone, computer 6) Compatible with all navigation software 7) Rechargeable battery 8) BT GPS receiver, CD manual,car charger, travel charger (box packing) Environmental conditions: 1) Operating temperature: -40 - + 85°C 2) Storage temperature: -40 - +100°C 3) Relative humidity: 20 - 95% Specifications: 1) Input voltage: 2.5 - 4.5V 2) Power consumption: 7mA type at 3.0V 3) Output connector: 180 degrees, plug SMA 4) Cable: RG174/U 5) Optional connector: 180 degrees, plug MCX / SMC / MMCX Mechanical specifications: 1) Dimensions (L x W x H): 86 x 45 x 23mm 2) 100% waterproof 3) Plastic color: black 4) Fixed method: magnet on bottom Antenna: 1) Frequency range 1,575.42±1.023MHz 2) Gain (mounted on the 70mm 90.: 5.0 dBi min. x 70mm square ground plane) 20 .: -5.0 dBi min. 3) Polarization: RHCP 4) Axial ratio 90.: 3dB type 5) Azimuth coverage: 360 degrees 6) Elevation coverage: 0 - 90 degrees LNA: 1) Frequency range 1,575.42±1.023MHz 2) Gain 24±2 (+25±5 degree), 24±5 (-40 degree to degree) 3) Noise figure: 1.6dB max (+ 25 degree±5 degree), 2.5dB max. (+85 degrees) 4) Out of band rejection=1,575.42MHz±50MHz (25dB type), ±100MHz (35dB type) 5) Reverse isolation: 50dB type 6) Output impedance: 50ohm Packing: Gift box packing