1) Frequency Range: 400-470MHz <br><br>2) Support 16 Memory Channels <br><br>3) Rated voltage: DC 7.2V (Rechargeable Li-ion battery) <br><br>4) Antenna impedance: 50 ohms <br><br>5) Emergency alarm function? Wide band / Narrow band <br><br>6) Scan and Monitor Function <br><br>7) Low battery warning <br><br>8) 12.5KHz / 25KHz compatibility <br><br>9) Output power: <=3W <br><br>10) Adjacent channel selectivity: >= 65db <br><br>11) Modulation sensitivity: 12mV <br><br>12) Wireless Distance: 3-5KM (max) <div class="params_begin">Specification:</div><div class="params_group"><table border="0" class="params_group_table">  <tr>	<td class="params_group_name">			Package Weight		</td>	<td class="params_props">			<div class="params_prop ">		  <table border="0" class="params_prop_table">			<tr>					<td class="params_name">One Package Weight</td>			<td class="params_value">				0.94kgs / 2.07lb			</td>					</tr>		  </table>		</div>			<div class="params_prop ">		  <table border="0" class="params_prop_table">			<tr>					<td class="params_name">Qty per Carton</td>			<td class="params_value">				20			</td>					</tr>		  </table>		</div>			<div class="params_prop ">		  <table border="0" class="params_prop_table">			<tr>					<td class="params_name">Carton Weight</td>			<td class="params_value">				12.20kgs / 26.90lb			</td>					</tr>		  </table>		</div>			<div class="params_prop last_prop">		  <table border="0" class="params_prop_table">			<tr>					<td class="params_name">Carton Size</td>			<td class="params_value">				44cm * 36cm * 34cm / 17.32inch * 14.17inch * 13.39inch			</td>					</tr>		  </table>		</div>		</td>  </tr></table></div><div class="params_end"></div> <p>&nbsp;<img src="//lh3.googleusercontent.com/-oYp3-Nj18a0/Vzl4ATG8byI/AAAAAAAAiB0/flsa52IW_io-CXISwM-o_wO6Gth2NbbmgCCo/s829/sg%2Bback.jpg" alt="" /></p>