25 W megaphone with inbuilt microphone*outputpower:25W*workingvoltage:DC12V*Batterytype:11.1V4800mAH(built-inlithiumbattery)*Impedanceofhorn:4Ω*effectivedistance:thedistanceofpolicesoundis500M,megaphoneis200M*workingtime:policesound≥3hoursmegaphone≥6hours*chargingperiod:6~7hours*size:240x134x218(mm)
outputpower 25W workingvoltage DC12V Batterytype 11.1V4800mAH(built-inlithiumbattery) Impedanceofhorn 4 ohm effectivedistance thedistanceofpolicesoundis500M,megaphoneis200M workingtime policesound≥3hoursmegaphone≥6hours chargingperiod 6~7hours size 240x134x218(mm)