BT Dual-Band Wi-Fi Extender N 600

Overview
BT's manual specifies the default SSID format as BTWifiExtndr-XXX
 * There is one hit for this format in WiGLE w/ a BC:96:80 (Shenzhen Gongjin Electronics) OUI.

BT's product info sheet notes the following additional info...
 * Weight: 167.4 g
 * Dimensions: 121 mm x 71 mm x 77 mm
 * Giftbox barcode: 5016351515174
 * Overpack barcode: 05016351822272

Links of Interest
Datasheet