Operation voltagevdc 72 modelbf uvb2 plus battery capacity1800mah whats in the boxearphone charger adapter battery clip cord antenna walkie talkie operate temperature 20c 50c walkie talkie typedigital handheld accessories typeearphone charger adapter battery clip cord antenna maximum range15km 3km frequency range136 174mhz 400 520mhz channel capacity128 output power w7 functionctcsscdcss lcd display dual standby dual display dual band voice prompt fm radi