Product DescriptionStyle: In-EarPackage: YesUse: Portable Media PlayerCommunication: WirelessPlug Type: USBIs wireless: YesFunction: Bluetooth，Noise Cancelling，Wireless Headphone，For Mobile Phone，PortableWith Microphone: YesConnectors: bluetoothBluetooth version: V4.1Supports feature: APT-XRF Range: Up to 33 feet from device (in open spaces)Stand-by time: 280 hoursTalking Time: 10 hoursMusic Time: 8 hoursCharging time: About 3 hoursPackage Weight: 0.200kg (0.44lb.)Package Size: 8cm x 8cm x 8cm (3.15in x 3.15in x 3.15in)Package;1 x Bluetooth Headset