KTF-1715 FM Radio BT Speaker MP3 Player TF USB FlashlightModel : KTF-1715Vintage Rechargeable Multi-function radio with USB TF Music playerMaterial : PPBluetooth: V5.0Clock Supported Bluetooth Wireless SpeakerUSB Charging: DC5VFrequency Range: 100Hz-20KHzWorking Distance: 10MOutput power : 2WType : ..