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Qqchina PA 30W PA System SIP Network IP67 Water-Proof Poe Oval Horn Speaker with Network Audio Decoding and Digital Amplifier, Find Details and Price about SIP Horn Speaker Horn Speaker from Qqchina PA 30W PA System SIP Network IP67 Water-Proof Poe Oval Horn Speaker with Network Audio Decoding and Digital Amplifier - Guangzhou Lingyin Electronic Co., Ltd.