... die-casting , plastic melt molding. Apple style high-end bluetooth speakers, designed by South Korean designer, whole body is delicate, ... audio, auto noise reduction, 19 core double magnetic dual speakers with 3-inch diaphragm, super bass effect. DC:5V ... RDA Built-in microphone, clear voice Bluetooth audio input,bluetooth handsfree, support iPhone iPad and all Bluetooth-enabled mobile phones, Mp3, etc ...