plastic megaphone have CE(LVD,EMC),ISO9001:2000 Function:loud speaker,warning,music play power:15W storage battery or 8pcs AA plastic megaphoneItem No.: N62Max power:15WBattery:storage battery or 8pcs AA battery,DC 9VFunction:loud speaker,recording(12s),warning,music playMaterial:ABS/PPSize:15cm(diam)*25cm(height) FACTORY TOURCERTIFCATES