Having a good taste of life is an attitude.Features:Fashionable Single-Ear design、Ultra Comfort Earpiece 、 much more fashionableand personality.Connection Type: Bluetooth V2.1Built-in BatteryVolume control: Volume up/Volume downWorking Distance: about 3 MetersCompatible with most bluetooth enabled device、such as cell phones、 smart phones or laptop/pc which have bluetooth function.Surpport System :Windows 98/2000/XP/Vista/win7Important note:1:It can't use more than 1A and 1A charger (CHARGER NOT INCLUDE!)2:This earphone may not fit to your ear if your ear is too small or large、do not fit left ear:)If you received the item have any problem 、please contact us first 、we are very happy to help you solve the problem :)DescriptionsBluetooth Version: V2.1+EDRFrequency range: 2.4GHz--2.48GhzCharging:0--45Operation voltage:3.6VFile Format: Headset and hands-free formatChannel: MonoTalking time: ?㉨2HStandby time: 60 hoursStandby current: ?㉨1mColor:blackHeadset size:48*16mmCable length:520mmWeight:20 gPackage weight:30 gUsage:Long press the Answer/end button till indicator light shows blue and begin flashTurn on the bluetooth device of your cellphone、 and searching the bluetooth device named 8015.Normally it will not need pairing pass word、 but if it is needed、 pairing pass word is 0000.Answer or reject the phone calls by pressing the answer/end button、 and you could also volume+/volume- by pressing the side buttons.You couldn't listen music with this earphonePackage Included:1 x Bluetooth Mono Earphone W/MIC1 x usb cable↔¨DO NOT INCLUDE CHARGER↔?Just join us、 enjoy a better life. "