Customer Service: Thanks very much for choose HOCHYOO. We always try our best to provide high quality products and service. We always check carefully before send the goods, however products may get damage during the long delivery.If you find any quality problem, please contact us within 7 days after you get the goods. We will solve the problem. For any reason if you just want to return the products, please contact us within 7 days after your receipt. Keep the products in original condition and pay the shipping cost by yourself, we will full refund after receive returned product. If you like our products, please do not hesitate to give us satisfaction and positive comments. If for any reason, you do not satisfied, please do not directly leave negative feedback, just contact us, we will try our best to make you satisfied. Logistics Services: We always send out the goods within 5 days after your payment. If you want to specify the shipping method, please pay shipping cost. Below is the estimated delivery speed for your choice. Post air mail: 10-60 days Tracking website: local post office website ePacket: 7-25 days Tracking website: local post office website EMS express: 5-20 days Tracking website: local post office website DHL express: 4-8 days Tracking website: dhl.com FedEx express: 4-8 days Tracking website: fedex.com *Above delivery speed only for reference, busy season, bad weather may cause delay. *Post air mail to Eastern-European countries, South American countries may take longer than 60 days. The above time is for reference only *Express usually have customs tax issue, in that case, please cooperate customs to pay tax. Bluetooth headset features: 1. Unparalleled experience of extraordinary sound. This Bluetooth headset with full wireless design to release legendary high-definition sound quality. With the latest Bluetooth connectivity technology, showing a sense of extension of the treble, natural midrange and strong bass these headphones are known for this feature. 2. HD wireless Bluetooth headset with a full wireless design presents legendary high-resolution sound quality. This headset is equipped with the latest Bluetooth connectivity technology, whether you are playing games, talking with friends or enjoy moving music, it can be extraordinary power for you to create an unparalleled musical texture 3. Extremely wearable: large breathable gasket and top material, so you feel the sound texture, ignore the headset itself. 4.Bluetooth 3.0 + EDR: Easy matching with Bluetooth enabled devices such as mobile phones, tablets, computers, and even TVs. The streamlined ControlTalk design brings long range and longer battery life, allowing you to be free to move. 5. Built-in microphone to achieve hands-free calls: ControlTalk built-in microphone allows you to use mobile phones for hands-free calls. It allows you to control the iPod or iPhone Android phone on the headset, including pause, the next song and volume control.