antenna bars (U+1F4F6)

The "📶" emoji is commonly used to represent cellular signal strength or network connectivity. It can indicate a good or weak connection, depending on the number of bars displayed. It is often used to convey the availability or quality of a wireless network, or to ask someone if they have a stable internet connection. This emoji is also sometimes used to depict TV or radio signals, and may be used humorously to suggest a lack of signal or poor reception.