... has long working time OEM&ODM ♣SpecificationProduct nameAudio receiver bluetooth digital Model NO.JH-M3037MaterialRubberized finishColorRed, blue, purple, orange, black ... ' manual*1 ♣ Operation steps:1. Connect the bluetooth music receiver directly to the speaker with 3.5mm audio cable2 ... connect it.3.After successful paring,we can play the music without wires. ♣ Note:Complies with Bluetooth 2.0, ...