Great noise cancellation : Latest Bluetooth V4.0 Technology & CVC6.0 bluetooth earbuds provides a comfortable and dynamic listening experience. You can get great listening experience even in noisy environment.</br>Easy Pairing:Long press the power button when the headset it off (the Blue and Red led light quickly flashes in turn?? hear "airing")?? open you bluetooth device to search for "1" then pair it.</br>10 meters wireless range: Apt-X Audio Decode Technology delivering high-fidelity stereo music and?clear speech within 10 meters of strong and stable bluetooth operating range.</br>Lightweight & Sweatproof Design:Included a pair of soft earhooks stable in-ear design earphones perfect comfortable fit for running cycling workout or other activities.</br>Long Battery Life: 60mAh rechargeable battery support about 200 hours standby time or about 4 hours playing time(The volume will effect the time).</br></br>Product Description</br></br><b>We provide 100% satisfaction guarantee. Product is covered with 1 year warranty on parts and labor from date of original purchase.</b></br> <b>1.Bluetooth 4.0: </b>Latest CSR Bluetooth V4.0 technologysteady signal and fast connection with your smart Bluetooth devices.</br> <b>2 .Hands-free Calling:</b> Call your friends or colleagues using the built-in microphone.Noise cancellation feature makes sure your voice is loud and clear even in noisy environments.</br> <b>3. Super Comfortable Human Ergonomics Design:</b> With a pair of soft earhooks?? providing you with comfortable wearing experience?? lightweight (0.63oz) and sweatproof especially for sports?? running?? cycling?? workout activities.</br> <b>Specifications:</b></br> Bluetooth version: V4.0</br> Profile support: HSP/HFP/A2DP/AVRCP</br> Battery capacity: 60 mAh</br> Siri: Yes (Press MFB until a voice prompt is heard)</br> Charging voltage??DC 5V??300MA</br> Charging time: about 1 hours</br> Standby time: about 200 hours</br> Talk time: about 5 hours</br> Play time: about 4 hours</br> Sensitivity: 100dB??3dB</br> Frequency responded: 20-20KHz</br></br> <b>Package Includes: </b></br> 1 x Bluetooth Headphones </br> 1 x User Manual </br> 1 x USB Charging Cable </br></br><br/>http://www.amazon.com/gp/product/B01LYZEWA77d