This is a new Sweat-proof Bluetooth 4.1 +A2DP Wireless Headset Sport Earphone headphone---The Newest advanced Bluetooth 4.0 technology (8 times the bandwidth than that of the Bluetooth 2.1 standard). And, it can work well with iPhone 6,6+,5s / 5c / 5 / 4s / 4 / 3 / 2; iPad series / iPod / iTouch; Samsung Galaxy S4 / S3 / S2 / Note2 / Note4 3 / / Nokia / HTC / aTT / Toshiaba / Sony all smart phone and All Tablet / PC / Laptop. Moreover, this item has the best Audio Performance. It can offer you the high-quality voice quality and is perfectly suitable for running, mountain-climbing and other sports. You will love it! You cant miss it!Features: Bluetooth 4.1 + A2DP CSR technology . Lets you wirelessly connect to compatible devices, such as, iPhone 6/6+/5s/5c/4s/4c/3/2 iPad, iPod, Android Smart phone; Samsung Galaxy S4/S3 Note2/3; Galaxy Tablet; Nokia Toshiba Sony and Blackberry Smart phones and other devices; most Mac and Bluetooth-enabled Tablet PC laptops and desktops. Bluetooth 4.1 is the most advanced Bluetooth technology and offer grate audio performance! Built-in microphone,allows clear communication,can be used as a headset. Music and phone can be easily controlled. Digital noise cancellation technology Secure fit This item include 3 pairs of different size ear buds (from small to big) for different people. Longer Battery Life.Built-in high-quality rechargeable battery which can offer you 5 hours of music or talk time and 180 hours of Standby time.Specifications: Supports Bluetooth V4.1 Supports profile A2DP/HFP/HSP/AVRCP Frequency response: 2.4GHz-2.48GHz Sensitivity: 120db3db SNR: 93DB Distortion: 0.4 Digital volume control Built-in Mic-phone Driver: 33 feet Micro USB port for battery recharge Wireless range: 33 feet DC battery power Working time: 5 hours Standby time: 180hours The length of the Bluetooth Headphone:58cm Color: Black/White/Red/BlueCompatible Models : Perfectly compatible for iPhone 6,6+.5S 5C, 5, 4 4s ,iPod , iPad2 3 4 5,iPad mini iPad air, HTC One Blackberry, Samsung GALAXY Nexus, Samsung GALAXY Note II, Samsung Galaxy S4/S3; NOKIA Lumia, HTC One X , Samsung S2 S3, Nokia, Motorola, LG, HTC ,Sony Ericson, PDA, Tablet PC, PC,laptop, PS3 and any Bluetooth enabled device.Packgae include : 1x wireless sport headphone (To save postage ,we take the item from original retail box, put in smaller white box) 3 pairs of ear buds . 1x USB charger 1x user manual