... desperate hours,it has several functions:Compass,Audio Mosquito Dispeller,Vibration Alarm,Alarm when meet rain ... lines 18 meters long. The production capacity for electronic toy products is 7-10 million per day ... , the general category production of electronic COB daily capacity is 20-30 million. ... 10 sets. Multifunction Compass,Audio Mosquito Dispeller,Vibration Alarm, Self-Rescue Alarm