With the latest Bluetooth 4.1 technology and the advanced CSR chip, our wireless earphone is dedicated to provide extraordinary sound quality experience. Stylish design allows snug fit and comfortable wearing.Smart Features:Intelligent voice prompts.Independent power, mute and volume buttons.Voice "Yes" or "No" to answer, reject the call.180 degrees rotatable mic, switch left or right ear at ease.Operating Range: up to 33 feet (accessibility, empty place)Bluetooth 4.1 InterfaceAllows you to connect seamlessly with virtually any Bluetooth devices from up to 33 feet away, so you can make hands-free phone calls, stream music, GPS directions and moreEasy ControlSeparate power, mute and volume buttons allow easy access and control. Audio prompts alert you about battery level, connection status, mute status and more8-10 Hours of PlaytimeAllows you to make reliable Bluetooth wireless calls and enjoy stream music&media throughout the day on a single charge. Recharging is simple with the included USB cableAll Day Wear Only weights 13.6g, durable and comfortable enough to be worn for hours at a time. Enjoy extended comfort with ergonomic lightweight design and ultimate soft ear gelsSpecification:Bluetooth Version: V 4.1Weight: 13.6gSupport: HFP, HSP, A2DP and AVRCP profilesOperating Range: up to 33 feet (accessibility)Battery capacity: 130mATalk time: 8 hoursStandby time: 320 hoursCharging time: about 1.5 hoursPackage:1 * Bluetooth Headset1 * USB Charging Cable1 * Owner?s ManualTips:Please DO remember Contact us if any problems/questions.Please do NOT charge your headset with car chargers in the car or fast charging cables to prevent the overload burning of the circuits.