（Bluetooth Two-channel Stereo）
BM01 is a BLE4.0 Bluetooth music model, It has the features of wide voltage input, stable performance, the strong reception signal, small size and cost-effective performance which meets multiple requirements of our clients.
* Support customizing the Bluetooth name and opening voice
* Internal integrated power management circuit
* Intelligent warning voice functions when over speeding and low battery etc
* Multiple IO ports for extended use and support USB sound device
* Support UART serial communication and customizing AT communication protocol
* Low-power Bluetooth stereo with communication + TF card + FM + Line in full-function in one single-chip module