CVJ-CSN In-Ear Dual Magnetic Circuit Dynamic HIFI Wired Earphone, Style:Without Mic(Black) Type-3.5mm & 2.5mm Cables the metal shell can effectively

the metal shell can effectively block external interference and ensure less signal loss transmission

Professional Disassemble the Tools--Metal Spudger Scraper

40HQ: 1356 cartons * 400 pcs = 542400 pcs

12 inches: 32 x 23

SIM card reader socket board for iPhone 7

CVJ-CSN In-Ear Dual Magnetic Circuit Dynamic HIFI Wired Earphone, Style:Without Mic(Black) Type-3.5mm & 2.5mm Cables the metal shell can effectively1. Cable length: 1. 25m 2. Product weight: 29g+ 3 3. Speaker: New 10mm dual magnetic moving coil + 2 medium and high frequency moving iron combinations + 2 high frequency moving iron combinations + 1 high frequency moving iron 4. Impedance: 22 ohms 5. Average sensitivity: 108+3db 6. Frequency response range: 7 40000Hz 7. Plug Type: 3. 5mm Gold Plated 8. Secure and comfortable fit around the ear, ergonomic in ear design 9. Suitable for sports, running,