QKZ CK9 HiFi In-ear Four Unit Sports Music Headphones (Black) Tag-Door Lock 40HQ: 191 cartons * 122

40HQ: 191 cartons * 122 pcs = 23302 pcs

94inch * 12

Drive 2CH speakers directly and support 3D positional sound and virtual 5

The edge is thickened to protect the screen from scratches

QKZ CK9 HiFi In-ear Four Unit Sports Music Headphones (Black) Tag-Door Lock 40HQ: 191 cartons * 1221. Quad core HD resolution The two 8mm moving coil units of the horizontal structure , strong quad core HD resolution , present CD quality sound 2. Ergonomic design comfortable to wear all day Use the huge human ear model data to design the earphone shape to you a comfortable experience 3. New acoustic tuning Powerful to restore the rhythm of the world, the iconic QKZ tuning style, true to restore all kinds of rhythm 4. Easy to operate, easy to master