Operation Specifications:1. Press & hold the power button for 1S to turn on the machine. At this time, the white indicator of the device 1status & the white status indicator of the device 2 are on, & the middle power indicator is lit yellow.2. At this time, put the bluetooth device (bluetooth speaker or earphone) into the bluetooth pairing state, & thenpress the right button of MR275 right. At this time, the blue indicator of the device 2 status flashes quickly & entersthe search pairing state. After the pairing is successful, the device 2 is blue. The status indicator will be steady on.3. If you need to connect a buetooth device (bluetooth speaker or earphone), enter another bluetooth device (bluetoothspeaker or earphone) into the bluetooth pairing state, & then press the MR275 left pairing button. At this time, the device 1 status blue indicator light is fast. Flash, enter the active search pairing state, after the pairing is successful, the blue statusindicator of the device 1 will be always on.4. Press & hold the right pairing button for 5 seconds to enter the bluetooth clearing list (that is, all previously connectedbluetooth device lists will be deleted).5. Automatic connection status: When the bluetooth device & the MR275 are successfully paired, when the bluetooth device is turned on again, it willautomatically connect back to the MR275; When the bluetooth device is turned on & waiting for the connection state, the MR275 is turned on at this time, & t