GTS-1637 4 inch Super Bass Portable Splash Proof Wireless Bluetooth Speaker with TF Card/USB Player WITH MIC

SPECIFICATION:Rechargeable Battery FM Radio Function True wirelessstereo Big Sound Good Basswork with USBmicroUSB1.OFF/ON:To turn ON/OFFthe speak2.DC 5V Plug the Micro USB cable to the speaker and connectother end USB port to the power source.3.USB slot Used to read the song files in FAT32 format with maximumsize of32GB4.TFslot Used to read the songfiles in FAT32 formatwith maximumsizeof32GB5.Play/Pause:UnderUSB/TF/Bluetooth moeshort pressfor play andDause;6.M:To change mode duringUSB/TFBluetoothFM mode.7PREVNOL-USB/TE/Blue/FMmode:Swipeleft to movepreviousFM channer 1track Swipeleftandlonaoressto decreasethevolume,8NEXTNOL+:USB/TF/Smart/FMmode:Swiperighttomove nextFMchannel/trackSwine riaht and lona presstoincrease the volumeJNOTE If FM mode reception is not goodconnect a MicroUSB cabiejor better FM recention