1,Bicycle Bluetooth Speakers 2,Fashion design 3,Private mold 4,OEM 5,High quality and reasonable price. Bicycle Bluetooth Speakers LED flash ... light+MP3 music+Bike speaker1, 3-in-1 system for outdoor activity2,Structure: ... Dynamic Range: 90dB6.Frequency Range:300Hz-18KHz7.Search Light: Dual 1 watt Power LED Lamp8.Light Mode: 1st-Duty 90% ...