The Onyx is real-life ‘Star Trek‘ communicator which means it’s more like a walkie-talkie, but you can set up a communication beyond any geographical limitations.
For the primary level, Onyx costs only $99 and is able to run within its own network. It has to be connected to a smartphone via Bluetooth and it will work if your smartphone has data connectivity, that could be on cellular networks or Wi-Fi networks. Physically, it is 2.5-inch round and looks like a clip. It has a button in the mid-point for preparing the communication, a volume rocker, power switch and a mute switch. There is a multicolored LED ring around the main button which changes color based on availability. For example, Blue means available, Green indicates user is talking and Yellow is mute.
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