headphone jack automatic tour guide system

Brand Name:YingMi

Model Number:007B

Place of Origin:China

..., factory visits, etc., which can be explained according to the situation of walking in real-time, standard and unified. Specification: 007B Value Automatic induction: Radio frequency and infrared induction,for far and near distance demand; Accuracy of 0.5

Brand Name:YingMi

Model Number:007B

Place of Origin:China

..., factory visits, etc., which can be explained according to the situation of walking in real-time, standard and unified. Specification: 007B Value Automatic induction: Radio frequency and infrared induction,for far and near distance demand; Accuracy of 0.5

Brand Name:aomei

Model Number:PSE-011-1

Place of Origin:China

Professional Ear Hook Earphone Meeting Monitar headphone with 3.5mm Stereo Jack for Office worker Meeting Translation Features Ear hanging stent with a comfortable elastic fit made of plastic, wearing a great degree of comfort to enhance The use of left...