Manufacturer: HP Inc. Manufacturer Part Number: 89D19AA. Brand Name: Poly. Product Name: VVX 150/250 Wall Mount Bracket. Product Type: Mounting Bracket. [Product Information] Device Supported: IP Phone. Mount Function: Wall Mount. Mount Surface: Wall. [Physical Characteristics] Form Factor: Wall Mountable. [Miscellaneous] Compatibility: Poly - VVX (150/250) IP Desk Phone. Country of Origin: China.