Features: -Excellent Sound Quality Advanced 4X noise canceling microphone technology eliminates background noise for crystal-clear audio and uninterrupted conversations, letting you focus on your work or your call in comfort and style. -Superior Comfort Weights ONLY 0.5 oz., durable and comfortable enough to be worn for hours at a time. Enjoy extended comfort with ergonomic lightweight design and ultimate soft ear gels. -Easy Control Separate power, mute and volume buttons allow easy access and control. Press the centrally located answer/end button to direct incoming calls. Audio prompts alert you about battery level, connection status, mute status and more. -Bluetooth 4.1 Interface Allows 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 more. -Long battery life 8-10 Hours of Talk Time and up to 7.5 Days on Standby Mode. Allow 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 cable. Specification: Bluetooth Version: 4.1 Weight: 0.5 ounces Support: HFP, HSP, A2DP and AVRCP profiles Operating Range: up to 33 feet (accessibility) Battery capacity: 110mAH Talk time: 10 hours Music play time: 8.5 hours Standby time: 180 hours Charging time: about 1.5 hours Package: 1 * Bluetooth Headset 1 * USB Charging Cable 2 * Eargels in the case and 3*Eargels in the small bag 1 * Carrying Case 1 * Owner?s Manual How to contact us: Enter our store"Yotech"that below the button"Add to cart", and find the button"Ask a question", you can contact us easily.