... .Lightweight:reinforce ABS,577G 3.Certificate:CE,FCC 4.Patented Battery megaphone L-3LAImpact-Resistant, Lightweight,and Durable Construction! Perfect ... mm2) Power: 6 x AA batteries3) Net Weight(without battery): 577G 4) Battery Life(Voice) : 18-22 hours 5) Power: Max. ... 20W6) Charger : DC 12V/500mA7) Material: reinforced ABS8) Sound level: >110dB9) ...