ER-520 Compact Handheld Megaphone\n Small in size & light in weight the ER-520 megaphone can be easily carried by a single h&. Handle & microphone with anti-bacteria treatment improve hygiene & safety during use. The newly developed polyimide diaphragm is employed to ensure high sound quality.\n\n&162; Power Output: 6W Rated / 10W Max. \n&162; 8 AA batteries (8 hrs) \n&162; Range: 250m (speech) \n&162; Anti-bacterial treatment for all models (mouthpiece/microphone & handle) \n&162; High durability ABS or ASA resin construction \n&162; Compact & lightweight \n&162; Wide frequency range for enhanced audio quality \n&162; Neodymium magnets & Polyimide speaker diaphragms