The utility model has advantages that the utility model is convenient to wear and the alarm is accurate; the utility model has obvious function for correcting incorrect reading and writing postures.
本实用新型的优点：佩戴方便，报警准确，对纠正不正确的读写姿势有显著作用。
The utility model has advantages that the utility model is convenient to wear and the alarm is accurate; the utility model has obvious function for correcting incorrect reading and writing postures.
本实用新型的优点：佩戴方便，报警准确，对纠正不正确的读写姿势有显著作用。
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