Are all the TV remote controls at home controlled by infrared rays? Anything else?

At present, there are two remote control methods for TV sets, infrared remote control and Bluetooth remote control.

Present situation: At present, more than 95% TV remote controllers use traditional infrared remote controllers, and Bluetooth remote controllers account for a very small proportion.

Features:

Infrared remote controller: low power consumption, low price, need linear remote control, receive infrared signals through infrared receiver, respond quickly, and do not support voice input.

Bluetooth remote controller: high power consumption, high price, remote control through Bluetooth protocol, no need for linear remote control, difficult to develop, and support voice input.