Apple airpods5 is the latest headset.

Differences between various versions of Bluetooth

Bluetooth 1.0: The transmission rate is about 1M/s.

Bluetooth 2.EDR: The transmission rate is about 2-3M/s, of which 2.1+EDR is the most classic Bluetooth. Its biggest feature is safe and easy pairing.

Bluetooth 3.HS (Bluetooth High Transmission): High transmission 24M/s. Only devices marked with the "+HS" trademark truly support 802.11 high-speed data transmission.

Bluetooth 4.0 (Bluetooth Low Energy): It includes classic Bluetooth, high-speed Bluetooth and Bluetooth low energy protocols. It consumes less power based on 3.0 and is mainly aimed at users with extremely low power consumption requirements and buttons. Battery powered applications. Among them, 4.1 adds Internet of Things features and supports batch data exchange rate storage. The biggest feature of 4.2 is that it allows multiple Bluetooth smart devices to access the LAN or the Internet through one terminal.