... anywhere charm.•This is a modern fashion, the appearance of a unique mini digital audio.•The new aluminum diaphragm micro-speaker, clear ... phones, computers.•Metal, cicular design, button curved design, a variety of colors, highlights the modern style, make you own way.• ... 1.77 inch (extemal diameter 45mm), magnetic resistant 4OhmsLine in: configure 3.5mm stereo plugsPower Supply: support USB charging, ...