The middle connector doesn't signal anything to you. You can only connect a phone line at both ends and receive a signal.
Shockproof IPad Mini 1 2 3 Kids Case With Built-In Screen Protector And Lightweight Handle Stand - Rose
52 Review
HUAWEI FreeBuds Pro 2 wireless headphones, mother of pearl blue
80 Review
Smartphone Apple iPhone 14 Pro Max 256 GB, silver
105 Review
Jabra Talk 45 Bluetooth headset, black
39 Review
JOYUSING 8MP Document Camera for Teachers - VGA/HDMI/USB Three Mode, Mac, Windows, Chrome Compatible - Ideal for Online Teaching, Distance Learning, and Web Conferencing
3 Review
π· CZUR Shine800-Pro: High-Speed Document Camera for Mac and Windows with OCR Function
10 Review
IPEVO V4K: Ultra High Definition 8MP USB Document Camera - Perfect for Live Demos, Web Conferencing, Distance Learning & Remote Teaching on Mac OS, Windows, and Chromebook
3 Review
π CZUR Assistive Cover 13.14-inch: Splash Resistant, Adjustable Hook & Loop, PVC Material for CZUR Book Scanner - Office & Home - Black
4 Review