（Bluetooth APP and Music Two in One Board）
TD01 is a Bluetooth APP and music two in one board. 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.
* Wide voltage input which can work for a long time in 12V-45V
* Support to customize the Bluetooth name and start up voice
* Bluetooth firmware update online
* APP supports wireless firmware upgrade
* The function of voice warning like over speed and low battery etc.
