DY-IC525NS (Custom speaker (narrow bezel/ultra-thin))
亦备德（上海）自动化设备有限公司
沪ICP备15000997号
company address
Room B, 10 / F, Yonghua Building, 138 Pudong Avenue, Pudong New Area, Shanghai 200120, China
International member of KNX Association and Enocean Association