Vendor name: Espressif Inc.

MAC Prefix: A4:7B:9D

MAC Range: A4:7B:9D:00:00:00 - A4:7B:9D:FF:FF:FF

Type: MA-L

Address: Room 204, Building 2, 690 Bibo Rd, Pudong New Area
　　　　　Shanghai Shanghai 201203
　　　　　 CN