Quantity   Component name
1 × Roving Networks RN52 Bluetooth Audio Module
1 × STM32F103 Microprocessors, Microcontrollers, DSPs / Microcontrollers (MCUs)
1 × LiPo 3.7V 100mAh Battery
1 × MAX1811 Power Management ICs / Power Supply Support
1 × MIC5205 Power Management ICs / Linear Voltage Regulators and LDOs