Quantity   Component name
1 × 10mW Green Laser Module The working end of the device
1 × Yuan 20081 4.2V 500mAh Lithium Battery Power supply unit
1 × Wireless Bluetooth V2.0 RS232 TTL Transceiver Module How to talk to outside
1 × HMC5883L Digital Compass Module Never loose the North
1 × GY-50 L3G4200D 3-Axis Digital Gyro Sensor Module Witch way is up or down
1 × MP1405 5V 1A Lithium Battery Charging Board Charging...
1 × MTK3339 GPS Module Where am I?
1 × ER-OLED0.96-3 Display