How can I connect a subwoofer with USB, FM, TF, TWS, and Bluetooth？

A subwoofer with USB, FM, TF, TWS, and Bluetooth functions can be connected to other devices in various ways. The following are detailed connection methods:

1. Bluetooth connection
Bluetooth connection is a convenient way of wireless connection, suitable for mobile devices such as smartphones and tablets.

Steps:
Ensure that the Bluetooth function of both the subwoofer and the phone (or other Bluetooth devices) is turned on.
Search for available Bluetooth devices in the Bluetooth settings of your phone or other device and find the name of the subwoofer.
Click on the name of the subwoofer to pair. If a password is required, it is usually set to 0000 or 1234 by default, or enter the correct password according to the device manual.
After successful pairing, you can play music or other audio content through Bluetooth.

2. USB connection
USB connection is commonly used to connect a subwoofer to a computer or other device that supports USB audio output.

Steps:
Connect the subwoofer to the USB port of a computer or other device using a USB cable.
On the computer, it is necessary to ensure that the audio output is set to a device connected via USB. This can usually be adjusted in the "Sound" settings of the control panel.
After successful connection, you can play music or other audio content through USB.

3. FM connection
FM connection actually refers to the built-in FM radio function of the subwoofer, rather than the connection method with external devices.

usage method:
Find the FM button or interface on the subwoofer.
Manually or automatically search for available FM radio stations.
Select the radio station you want to listen to and start playing.

4. TF card connection
TF card (Micro SD card) connection allows users to store audio files on the TF card and play them directly through a subwoofer.

Steps:
Insert the TF card containing audio files into the TF card slot of the subwoofer.
Find and select TF card playback mode on the subwoofer.
Browse and select the audio file you want to play to start playing.

5. TWS connection
TWS (True Wireless Stereo) connection is a special wireless connection method suitable for connecting subwoofers that support TWS functionality with other speakers.

Steps (taking two speakers as an example):
Ensure that both speakers are turned on and in a pairable state. Some speakers may require pressing the pairing button to activate pairing mode.
Select another speaker on one of the speakers for pairing. After successful pairing, the two speakers will automatically form a wireless stereo system.
Connect your phone or other audio device to one of the speakers (usually the main speaker) using Bluetooth, and the audio signal will be transmitted to the other speaker (the secondary speaker) through TWS connection, achieving wireless stereo playback.

Please note that different brands and models of subwoofers may have different connection methods and operating steps. Therefore, during the connection process, it is recommended to refer to the user manual of the subwoofer or contact the manufacturer for more detailed guidance.