Operation voltagevdc72v modeluv 5r 4th battery capacity2800mah whats in the boxearphone charger adapter battery clip cord antenna walkie talkie operate temperature 20c 50c walkie talkie typedigital handheld accessories typeantenna earphone charger adapter battery clip cord maximum range15km 3km frequency range400 520mhz 136 174mhz channel capacity128 output power w51 functionfm radio ctcsscdcss lcd display dual standby dual display dual band voice prompt