This product ship from USA. Driver diameter: 40mm Impedance?32ohm Sensitivity:108dB +/- 3dB Frequency range?20-20000HZ Cable length:1.5M Microphone?yes Charging port:5 Pin micro usb Bluetooth protocol standards:4.0 Receiver frequency:10m...

NOTICE: If you purchase Sound Intone MS200 Headphones from any sellers on Amazon other than AMAZON.COM or MUJI SHOP,you may buy the imitated products. All Sound Intone products come with 3 months Warranty and it is ONLY available when you purchase...