Bluetooth audio receiver 3.5mm jack for speakers Long transmission distance Optional embeded battery has long ... working time ♣SpecificationProduct nameBluetooth audio receiver 3.5mm jack for speakers Model NO.JH-M3037MaterialRubberized finishColorRed, blue, purple, orange ... *25cm40pcs/CTN 4.8kg/CTN Bluetooth audio receiver 3.5mm jack for speakers