1.High-end stereo mini bluetooth speaker with fm radio   2.Soft housing, with metal netting(customizable design) 3.Mini bluetooth speaker driver deliver massive and rich sound 4.Large speaker cavity inside for excellent sound effect 5.Built-in TF card and AUX IN 6.Built-in recharger battery supports up to 2.5 hours' playback time 7.Built-in microphone for hands-free phone call 8.Six buttons for controlling tracks on phone wirelessly 9.Low battery warning when battery power is low 10.Easy connect to phones or other Bluetooth devices 11.Can be used as a wired portable mini bluetooth amplifier speaker