J&B customizedStyle: In-EarConnectors: USBPackage: NoUse: Mobile PhoneFunction: Bluetooth，MicrophoneCommunication: WirelessModel Number: J&B Mini Bluetooth EarphoneUnit Type: piecePackage Weight: 0.200kg (0.44lb.)Package Size: 20cm x 20cm x 5cm (7.87in x 7.87in x 1.97in)