Shenzhen Bilian (LB-Link) device on my network
Shenzhen Bilian Electronic is a Chinese maker of Wi-Fi modules and adapters, sold under its own brand as LB-Link.
What Shenzhen Bilian (LB-Link) makes
Bilian builds low-cost Wi-Fi modules, usually around Realtek or MediaTek chips, and USB Wi-Fi adapters. Its modules turn up in smart TVs, Android TV boxes, projectors, budget IP cameras and other inexpensive connected electronics.
What the device on your network probably is
Most likely a smart TV, projector or Android TV box, especially a budget brand. Next most likely is a cheap USB Wi-Fi adapter plugged into a PC. It can also be an inexpensive IP camera or video doorbell.
How to work out which device it is
Check the network or About screen on TVs, projectors and streaming boxes for their MAC address. Unplug suspects one at a time and see which entry drops off. RECON's Camera Check looks for camera services such as RTSP and ONVIF on the network, which helps rule a camera in or out.
Should you be worried
Normally a TV or streaming box you own. Bilian modules are also common in budget cameras, so if you cannot match it to anything, check for cameras before assuming it is harmless.
The app finds every device on the Wi-Fi you are on, at home or in a rental, and puts the vendor next to the hostname, the services it advertises and its open ports, which together usually name the product. Where it cannot tell, it says so instead of guessing. Get RECON for iPhone — one-time purchase, no account, nothing leaves the device.