ER-1206W - Toa Megaphone 6 W- Whistle- Yellow

Power Source: R6P(AA) x 6 (9 V DC) or R6P (AA) x 4 (6 V DC)Rated Output: 6 W(when using six R6P batteries)Maximum Output: 10 W(when using six R6P batteries)Battery LifeWhen using six R6P batteries (JEITA)(*1)Voice: Approx. 8 hours, Siren:Approx. 20 minutesWhen using four R6P batteries(*2) (JEITA)(*1)Voice: Approx. 5 hours, Siren:Approx. 10 minutesAudible Range: Voice:Approx. 250 m (JEITA)(*1), Siren: Approx. 315 m (JEITA)(*1)Signal Sound: WhistleFrequency Response: 450 - 6,000 Hz (SPL -20 dB)Magnetic Circuit: Neodymiummagnet, inner magnet typeDiaphragm: Polyimidefilm (voice coil, bobbin)Anti-bacteria Treatment: Mouth and handleWater Protection: IPX5Operating Temperature: -10?to +40?