What is a Bluetooth headset with one get two free? 0? three

Bluetooth headset is a drag, that is, a Bluetooth headset can connect two Bluetooth devices (such as two mobile phones). The use steps are as follows:

First, turn on the Bluetooth function of the mobile phone, then turn on the Bluetooth headset, turn on the power button and pull it up to automatically enter the pairing mode. At this point, the red and blue lights flash alternately;

2. The Apple system clicks the Bluetooth device with model zds560 on the mobile phone for a few seconds, and the pairing is successful.

3. If you want to connect the B mobile phone, please pull down and turn off the Bluetooth headset, and then turn off the Bluetooth of the paired A mobile phone;

4. Turn on the Bluetooth headset again to enter the pairing mode, and the red and blue lights flash alternately; Turn on the Bluetooth function of mobile phone B, and Android will click to search for Bluetooth devices, find the Bluetooth headset with model s560, and click Pairing to complete the connection.

5. Turn on the Bluetooth function of mobile phone A again, find the model of the previously connected Bluetooth headset s560 (the model is already in the list), and click "Connect" to complete the automatic pairing. At this time, these two mobile phones can use this Bluetooth headset to answer the phone and listen to music.