1. Determine whether the square dance trolley speaker has built-in Bluetooth function. If not, you can purchase an external Bluetooth device to connect.

2. Switch the mode (MODE) on the square dance trolley speaker player to Bluetooth mode.

3. Use your mobile phone to turn on Bluetooth and search, find the Bluetooth name of the square dance trolley speaker and pair it. When the pairing is successful, the speaker will make a "ding-dong" sound, indicating that the pairing is successful.

Bluetooth (Bluetooth?): is a wireless technology standard that enables short-distance data exchange between fixed devices, mobile devices and building personal area networks (UHF in the ISM band of 2.4-2.485GHz radio waves).

Bluetooth technology was originally created by telecommunications giant Ericsson in 1994 as an alternative to RS232 data lines. Bluetooth can connect multiple devices, overcoming the problem of data synchronization.

Today Bluetooth is managed by the Bluetooth Special Interest Group (SIG). The Bluetooth Technology Alliance has more than 25,000 member companies around the world, which are distributed in multiple fields such as telecommunications, computers, networks, and consumer electronics. The IEEE listed Bluetooth technology as IEEE 802.15.1, but this standard is no longer maintained.

The Bluetooth Technology Alliance is responsible for overseeing the development of Bluetooth specifications, managing certification projects, and safeguarding trademark rights. A manufacturer's device must comply with Bluetooth SIG standards before it can be marketed as a "Bluetooth device." Bluetooth technology has a proprietary network that is distributed to devices that comply with the standard.