引导声(外声) External Sound NTSG id 2
引导声(外声) External Sound NTSG id 2 External Sound 引导声 (外声)  Swiftlet Sound System 燕声工程与音响 Johor Bahru (JB), Malaysia, Desa Jaya Supplier, Suppliers, Supply, Supplies | Nest Tech System Sdn Bhd
引导声(外声)External Sound NTSG id 2
2021 最新声!

此燕声需具其特性,需要有强力的引导能力,方能有效把燕屋外部的燕群,引进燕屋内部。
External sound. Effective to attract and lead swiftlets into house.

共有多款成功外声:
Some of the successful external sound :
1. BNS 12
2. BNS 9
 
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