What are Bluetooth headphones?

It is the name of a wireless standard different from Wi-Fi.
Bluetooth is the name of a wireless connection standard. Put “wireless connection between various devices.” Until now, such devices as wireless keyboards, wireless speakers, wireless mice, wireless headphones, etc., have been used by each company with their standard radio. It is a standard that unifies them so that any device can be used immediately by connecting them.

Bluetooth is power-saving and suitable for short distances
Speaking of wireless standards, Wi-Fi is famous. Still, it was developed to connect multiple devices to the network, so advanced work such as fast transfer speed, the power of radio waves reaching a certain distance, and security are required. It becomes.

Bluetooth is a bit simpler. Because it is about making familiar digital devices wireless, the output is low compared to Wi-Fi (that is, it is not suitable for long distances). Still, the transfer speed is not fast, but instead, it can be made smaller and cheaper with power saving.

If you use a smartphone or computer and think that this cable is in the way, you can think of it as a wireless connection via Bluetooth. In particular, the latest Bluetooth smart compatible devices consume very little power during standby, so they can always be connected.