brand：Study of cable

JF-301C wireless microphone characteristics:

1, full-featured:
2.4G wireless microphone, computer, laser pointer pen three in one design, greatly simplifying the teacher will take 3 kinds of products that trouble, save the cost and improve the efficiency of the teacher, the teacher let the class a relaxed plan.
2, small size:
Pen emitter size is equivalent to a pen, is currently on the market the same product in the smallest volume, the lightest weight of the product, the overall weight of the product is only 20 grams. Users can hold, but also can not be used on the clothes, the use of any clothing requirements, long time use and no sense of weight. The utility model is convenient for users to carry, and is clean, sanitary and easy to manage.
3, green environmental protection:
The use of energy-saving technology ultra-low emission power, electromagnetic radiation is only ordinary mobile phone 1/90, worthy of the name". Built in lithium battery and charging module, with low voltage alarm, charging instructions, automatic shutdown after charging and other functions. A full time of more than 10 hours to meet the requirements of all day use.
4, strong anti-interference:
With professional ID code encryption transmission technology, ID coding up to one million units, each product is only a unique ID code. Use the same equipment in the same place without interference. The user does not speak, or in a state of weak signal, receiver with automatic mute function.
Schematic diagram for use JF-301C wireless loudspeaker products: JF-301C wireless microphone characteristics:

Emitter schematic

1, full-featured:
2.4G wireless microphone, computer, laser pointer pen three in one design, greatly simplifying the teacher will take 3 kinds of products that trouble, save the cost and improve the efficiency of the teacher, the teacher let the class a relaxed plan.
2, small size:
Pen emitter size is equivalent to a pen, is currently on the market the same product in the smallest volume, the lightest weight of the product, the overall weight of the product is only 20 grams. Users can hold, but also can not be used on the clothes, the use of any clothing requirements, long time use and no sense of weight. The utility model is convenient for users to carry, and is clean, sanitary and easy to manage.
3, green environmental protection:
The use of energy-saving technology ultra-low emission power, electromagnetic radiation is only ordinary mobile phone 1/90, worthy of the name". Built in lithium battery and charging module, with low voltage alarm, charging instructions, automatic shutdown after charging and other functions. A full time of more than 10 hours to meet the requirements of all day use.
4, strong anti-interference:
With professional ID code encryption transmission technology, ID coding up to one million units, each product is only a unique ID code. Use the same equipment in the same place without interference. The user does not speak, or in a state of weak signal, receiver with automatic mute function.
Schematic diagram for use JF-301C wireless loudspeaker products: JF-301C wireless microphone characteristics:

Jing Feng JF-306 pen small receiving wireless microphone