Bluetooth master decoder, safety V-type, anti smashing, head protection helmet scheme developmentIt is equipped with a hard hat integrated with a Bluetooth phone and a large wind fan, which can receiv
Bluetooth master decoder, safety V-type, anti smashing, head protection helmet scheme development
It is equipped with a hard hat integrated with a Bluetooth phone and a large wind fan, which can receive and make calls, play a radio, insert a card to play songs, fan in hot days, double fans, large wind force, equipped with 4.5w brushless double motors, low noise and sufficient wind force. The two fans are equipped with independent switches, which can control the switches separately. The wind force can be adjusted. One fan is used at ordinary times. When it is too hot at noon, two fans can be turned on together.