Users Manual

Main functions of the product
1: indicator light
Display bluetooth connection/lithium battery working status
2: charging port
Universal MICRO USB charging port
3: power on key
Power on left, power off right
4: up and down curve key
Long press + for next song/next radio station, long press - for next song/next radio station
5: volume up and down
Short press + gets louder, short press - gets quieter
6: pause/play button
Press the play button to pause or play
7: mode key
Short press the M key to switch functions: radio, bluetooth, TF card, U disk
8: phone key
Double-click pause spindle to pull out the current phone, short press to answer the phone
9: TF card slot
Support for ultra high capacity 32GTF CARDS
10: U disk
Support U disk reading function, up to 32G
Product operation
1: bluetooth connection
1.1 turn the power switch of the bluetooth speaker to the ON side to start the speaker
power, and the speaker will be prompted by voice when it is opened, and then "bluetooth mode"
will be prompted, and the blue light flash represents the speaker entering the bluetooth search
state.
1.2 open bluetooth or other bluetooth devices on the mobile phone, search the bluetooth
name: ISB20, click to pair, and music can be played after successful connection.
2: telephone answering/dialing operation
2.1 after the pairing of bluetooth speakers is successful, double-click the pause button on
the product to call back the last outgoing phone number and press to hang up;
2.2 after successful pairing of bluetooth speakers, long press reject button, short press
pause button to answer calls, and then press again to hang up.
3: TF card playback
3.1 insert the TF card into the slot of the card. When a voice prompt occurs, the speaker will
automatically play the music in the TF card, and the speaker will automatically read the audio
files in the card. Users can use the speaker button to control the playing of music.
4: FM radio mode
4.1 short press mode key to enter radio mode, long press add or subtract key to change
channel.
5: USB player (USB disk)