Mainboard: ELF mini V3.0 Operating Voltage: 6-12V (18650 Lithium battery pack included) On-board Sensor: Light Sensor, Sound Sensor, IR, LED, Buzzer External Sensor: Temperature and humidity sensor; PIR sensor; OLED display; 5V130 motor module (fan); MP3 module; Slide potentiometer; RJ11 adapter; 1 to 4 RJ11 Module; 9g servo motor. Communication: Bluetooth, IR, 2.4G(optional) Program Software: WeeeCode (Scratch 3.0), Arduino IDE.