BAOFENG UV-B6 136-174/400-470Mhz FM  handheld portable radio + FREE earpiece 　 VHF/ UHF  DUAL-BAND TWO WAY RADIO 　 Frequency Range: 136-174 / 400-470MHz Dual-Band Display, Dual Freq. Display, Dual-Standby Output Power: 4/1Watts Priority Channel Scanning DTMF Encoded FM Radio Built=in Emergency Alarm Noise Reduction 1750HZ Relay Forwarding Confirmed Specifications: 　  Item number  UV-B6  General Frequency Range 65-108MHz(only commercial FM radio reception) VHF:136-174MHZ, UHF 400-470HZ (TX/RX) Memory channels: Up to 99 channels Frequency Stability ±2.5ppm Frequency Step: 5kHz/6.25kHz/10kHz/12.5kHz/20kHz/25kHz Antenna Impedance 50Ω Operating Temperature -20 to +60 ‘C Supply voltage Rechargeable Lithium-lon mAh 7.4V/1800 Mode of operation Simple or semi-duplex Dimension（W x H x D） 116.2 x 57.9 x 35.7 mm Weight 553g（including battery, antenna） Transmitter Output power 5W / 1W Modulation Mode F3E Maximum deviation ＜±5kHz(Wide) / ＜±2.5kHz(Narrow) Spurious Radiation ＜7.5μW Adjacent Ch. power ≤-65dB / ≤-60dB Receiver Receiver sensitivity 0.2 μ v (at 12 Db SINAD) Intermediation 65dB Audio output 1W Adjacent channel selectivity 65dB Spurious response 65dB Receiving current ≤380mA Package contents: 1 x BAOFENG UV-B6 (VHF136-174 / UHF 400-470Mhz Dual Band) 1 x 7.4V 2000MAh Li-ion Battery 1 x Dual Band Antenna 1 x Belt Clip 1 x English Manual 1 x Charger with Cable /PSU (Provide correct PSU plug for your Country) 1 x  Earpiece