Piezo Ceramic Piece
Air-conduction
Polypropylene and Titanium Edge
Piezoelectric Earphone
Direct Radiation Type
7.1Channel
Guangdong, China (Mainland)
Two Side Electrode
ISO&RoHS&SGS
Factory and Manufacturer
DHL or FedEx
3-7days for Sampels, 1-2weeks for Formal Orders
Carton