Brand Name:SkatollyStyle:NeckbandVocalism Principle:DynamicOrigin:CN(Origin)Control Button:YesActive Noise-Cancellation:YesCommunication:wirelessVolume Control:NoSensitivity:103±3dBWireless Type:bluetoothIs wireless:YesLine Length:0.6mSupport APP:NoFunction:Common HeadphoneConnectors:NoneModel Number:Stereo Noise Reduction Bluetooth EarphoneSupport Memory Card:NoResistance:32?Waterproof:NoWith Microphone:YesColor:Black, goldBluetooth chip and Bluetooth version:CSR 4.1Battery:3.7V 60mAhCharging power:5V / 80mAhTalk time:about 4 hoursTime:about 5 hours