TYT TH-UV3R Dual Band Two way Radio VHF/UHF Portable Ham Radio Walkie Talkies Specifications Chinese and English voice prompt 
 136-174MHz &400-470MHz 
 output power:2W 
 3.7 V 1500mAh li-ion battery 
 Repeater offset Main Functions Compact and easy to operate:Chinese and English voice prompt Voice scrambler:Emergency alert COMP function:Channel name editing Dual watching function:VOX function CTCSS/DCS scanning:Wide/Narrow Band(25kHz/12.5kHz) Full frequency coverage:1750Hz tone Battery capacity management:Power-on protection function Progammable multifunction key:FM radio and 25 radio stations memory Wire clone & PC programmable:Transmitter time-out timer(TOT) Repeater offset:Priority channel scan USB charging:Automatic power off(APO) End of tone:0-9 grades voice sensitivity Specifications General： Frequency Range:70-108MHz(FM Receive only) 136-174MHz/245-246MHz 245-246MHz/400-470MHz 136-174MHz/400-470MHz Channel No.:108 Frequency Stability:±2.5ppm Antenna:High gain antenna Antenna Impedance:50Ω Operating Voltage:DC 3.6V Mode of operation:Simple or semi-duplex Dimension(W x H x D):92 x 48 x 24 mm Weight:107g(including battery, antenna) Transmitter: Output power:≥2W(H) ≥0.5W(L) Modulation Mode:16kΦF3E / 11kΦF3E Maximum deviation:<5kHz(Wide) / <2.5kHz(Narrow) Spurious Radiation:<7μW Adjacent Ch. power:≤-65dB(Wide) / ≤-60dB(Narrow) Pre-emphasis characteristics:6dB Current:≤1.6A(5W) CTCSS/DCS deviation:0.5±0.1kHz(Wide) / 0.3±0.1kHz(Narrow) Intermediation sensitivity:8-12mv Intermediation distortion:<10% Receiver： RF Sensitivity:-122dbm(12db SINAD) Audio power:≥0.5W Audio Distortion:≤10% Intermediation:≤-65dB(Wide) / ≤-60dB(Narrow) Selectivity:≤-65dB(Wide) / ≤-60dB(Narrow) Spurious Rejection:≤-65dB Blocking:≥85dBuv/m packaging Including 1 x Radio body 1 x charge 1 x battery 1 x antenna 1 x belt clip 1 x user's manual