Baofeng Walkie Talkie Long Range Two Way Radio UHF 16CH with Headsets 2800 Mah Anti Fall Rain Proof Communication Distance 3-6 km

Specifications: Output power: 5(W) Reference distance: 3 ~ 6(km) Measured distance: 1.5 ~ 3(km)[local urban test] Frequency range: 400 ~ 470(MHZ)U frequency range Number of channels: 16 Frequency band: full band Encryption: CTCSS/DCSS Dimensions: 954530(mm) height width thickness Weight: 160(g) Operating voltage: 3.6v Battery capacity: 2800 mah Battery standby time: 300 hours (theoretical calculation) Normal working hours: 10 hours (theoretical calculation) Antenna interface: sma-j Operating temperature range: -20 ~ 60 Antenna impedance: 50 Channel step: 25KHz Modulation mode: F3E Sensitivity: 0.12muv Frequency stability: 2.5 PPM Clutter and harmonics: 7.5uw Audio output power: 500mW Hum and noise: >40dB(12.5khz); > 45 db (25 KHZ) Spurious response suppression: 60dB Audio response: 300-3000hz SNR: 40dB Intermodulation: 60 db Co-channel suppression: >12dB(12.5KHZ); 20/25 > 8 db (KHZ) ETS Adjacent channel selectivity: >-60db (12.5khz); > 70 db KHZ (20/25) RX audio distortion: 5% TX audio distortion: 1KHZ, 60% frequency deviation