MODEL: KOLEER S818 PARAMETER Bluetooth Version: 5.0 *EDR Bluetooth Distance: 15M Speaker Power: 5W * 2 Battery Capacity: 1200mAH *USB Voltage: DC 5V *Net Weight: 540g *Gross Weight: 644g Box size: 159 * 97 * 97MM *Random Color *Connectivity through Bluetooth V4.2, USB drive, and FM mode. *Has buttons to serve you with different functions like volume up or down, next or previous track, play or pause, on or off and changing modes of connectivity. Long press "M" can change 5he light color