YUNLIAN

3D spectacles; Cameras; Earphones; Megaphones; Microphones; Smartglasses; Smartphones; Telecameras; Automatic pill counters; Battery charge devices; Electric door bells; Electronic navigational and positioning apparatus and instruments; Global positioning system (GPS); Multimedia projectors; Projection screens; Rechargeable batteries; Smart watches; Tablet computers; Tape recorders; Wearable activity trackers