TWS Bluetooth earphones

1. Introduction of TWS Bluetooth earphones

TWS is a technology that transmits sound through Bluetooth signals instead of wires or cables, mainly utilizing two interconnected and connected earbuds to mobile devices, that is, two audio devices are paired through Bluetooth to transmit the left and right channels respectively, or a connection is formed between one main earphone as an audio source and the secondary earphone, and the signal is sent from the main earphone connected to the device, and then connected to another earphone, effectively enhancing the connection strength and improving the audio experience.

2. TWS Bluetooth earphones work on the working principle

TWS is a technology that transmits sound through Bluetooth signals instead of wires or cables, mainly utilizing two interconnected and connected earbuds to mobile devices, that is, two audio devices are paired through Bluetooth to transmit the left and right channels respectively, or a connection is formed between one main earphone as an audio source and the secondary earphone, and the signal is sent from the main earphone connected to the device, and then connected to another earphone, effectively enhancing the connection strength and improving the audio experience.

3. The basic structure of TWS Bluetooth earphones

At present, the mainstream TWS earphone products on the market are mainly composed of the charging case and the left and right earphones.

(1) The basic structure of the charging case

In addition to the shell, the components of the charging case mainly include: power management chip and MCU, battery, power input interface, lithium battery protection IC, MOS, wireless charging and receiving coil and chip (supporting wireless charging function), as well as PCB boards, FPC cables and wires that carry and connect these components.

(2) The basic structure of TWS Bluetooth earphones

The main components of TWS earphones include speakers, batteries, microphones, antennas, in-ear detection sensors, touch sensors, acceleration sensors, Bluetooth audio master control chips, noise reduction chips (supporting active noise reduction function), lithium battery protection ICs, program memory, etc. Because it is two earphones, all components need to be configured in pairs.