Main Features:
<br />Frequency range: 400 - 480MHz (could extend up to 520MHz)
<br />Work way: Different / same frequency signal work
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<br />    Specifications
<br />General
<br />	 Model Number: B - 310                                                  
<br />                        Frequency Bands: UHF                                                  
<br />                        Channels: Under 20 Channel                                                  
<br />                        Frequency Stability: +/- 2.5 PPM                                                  
<br />                        Feature: Long-lasting Battery Life                                                  
<br />                        Main Functions: PC Programmable, Scan, Chinese Voice Prompt, Engllish Voice Prompt, Busy Channel Lockout (BCL), VOX, Time-Out Timer (TOT), CTCSS/DCS, Minitor                                                  
<br />                        Special Function: With Flashlight, SOL, Battery Save, Low Power Alarm, High / Low Voltage Alarm, Voice Compression / Expansion, Scrambling Frequency                                                  
<br />                        Power Supply: 1 x 3.7V Lithium Battery                                                  
<br />                        Voltage: DC 3.7V                                                  
<br />                        Antenna: Loaded Antenna                                                  
<br />                        Antenna Impedance: 50hm                                                	
<br />Transmitter
<br />	 Output Power (high/low): Less than 5W                                                  
<br />                        Modulation (broadband/narrowband): 16K F3E / 11K F3E                                                  
<br />                        Maximum Frequency Deviation (broadband/narrowband): Less than 5KHz / Less than 2.5KHz                                                  
<br />                        Adjacent Channel Power: Less than - 65dB / Less than - 60dB                                                   
<br />                        Spurious Power: Less than 7.5uW                                                  
<br />                        Pre-emphasis Characteristic: 6dB / Every Frequency Doubling                                                  
<br />                        Emission Current: Less than 1.5A (5W)                                                  
<br />                        CTCSS/CTTCS Frequency Deviation (broadband/narrowband): 0.6KHz +/- 0.1KHz, 0.4KHz +/- 0.1KHz                                                     
<br />                        Modulation Sensitivity:  8 - 20mV                                                  
<br />                        Modulation Distortion: Less than 5 percent                                                	
<br />Receiver
<br />	 Reference Sensitivity: -122dBm (12dB SINAD)                                                  
<br />                        Audio Power: 0.5W                                                  
<br />                        Audio Distortion: Less than 5 percent                                                  
<br />                        Intermodulation (broadband/narrowband): More than 60dB / More than 55dB                                                  
<br />                        Adjacent Channel Selectivity (wide/narrow): More than 60dB / More than 55dB                                                  
<br />                        Clutter Suppression: More than 65dB                                                	
<br />Weight / Dimension
<br />	 Product Weight: 0.092 kg                                                  
<br />                        Package Weight: 0.340 kg                                                  
<br />                        Product Dimension: 9.0 x 5.5 x 2.5 cm / 3.54 x 2.16 x 0.98 inches                                                  
<br />                        Package Dimension: 25.5 x 17.5 x 6.0 cm / 10.02 x 6.88 x 2.36 inches                                                	
<br />Package
<br />	 Package Contents: 1 x B-310 Walkie Talkie, 1 x Antenna, 1 x 3.7V Lithium Battery, 1 x Belt Clip, 1 x AC Adapter, 1 x Lanyard, 1 x Chinese User Manual                                                	
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