GENERAL:<br> Transmission Frequency:<br> ISM 2400~2483.5 MHz<br> Transmission Power:<br> 17dBm<br> Unobstructed Effective Range:<br> 160ft/50m indoor/850ft/260m outdoor, line of sight<br> Spread Spectrum:<br> AFH &amp; TDMA<br> Modulation Mode:<br> GFSK<br> Operating Temperature:<br> 14~122° Fahrenheit/- 10~+50° Celsius<br> Operating Humidity:<br> &lt;85%<br> MONITOR:LCD Size:<br> 2.0"<br> Resolution Supported:<br> 220X176<br> Receiving Sensitivity:<br> -90dBm<br> Consumption Current:<br> 200mA<br> Battery:<br> Li-polymer / 540mAh<br> Power Supply:<br> 5V/1000mA DC<br> Dimensions (W x Hx D):<br> 60mm x 120mm x 18mm<br> Weight:<br> 0.085 kg Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.