Lenovo X9 Edition TWS Business Earbuds 4XD1R31390 Brand_FSP the COB (Chip on Board)
Yard notes & kiln story
Description
Lenovo X9 Edition TWS Business Earbuds 4XD1R31390 Brand_FSP the COB (Chip on Board) the COB (Chip on Board) manufacturing makes it completely resistant to dust Magnetic coercivity: 2500 2700 Oe