Samsung S-Patch3 User Manual page 16

F. Device Select View: scanning S-PATCH devices nearby and show IDs.
F.1. Devices: Scanned S-PATCH devices are shown. One of them is selected then
connection will be tried. The number in bracket after S-PATCH name is the
Device ID. RSSI is Received signal strength indication in a wireless environment,
in arbitrary units. It could be used to calculate distance of the S-PATCH and the
host device.
F.2. Nothing available: This will disconnect connected device and stay without any
connection
F.3. Cancel: This will back without any changes
F.4. App version: This shows App's version
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