User's Manual

4. Charging
When the red LED Light flashes please charging immediately. It need about 2 hours to
charging. When the red LED light out , it meats the battery is full.
Charging connect.
Please using standard USB charging cable, using the Micro’s port to connect the M91，USB
port to connect the USB charger（car charger、travel charger、computer USB etc）
Pleas noted：
*When you don’t use BH-M91，Please charging at least once every 2 months.