1Ergonomics Design: The NENRENT S580 Headset is designed according to ergonomics and the S580 is longest Call time Headset in the CurrentlyIt's extremely LightweightCrafted with refined aluminum alloy Anodizing shell Weights only 12g Fit wear the right ear for call clarity.</br>2Bluetooth CSR V4.1 Version:Supports Multipoint Technology Can connect to two different devices in 10 meters range simultaneously. which makes it fit perfectly to your ear and comfortable. Guaranteed to be 100% secure & stable during intense exercise such as running climbing riding camping and other active sports even in a rainy day.</br>3Longest Service Time: Built-in high performance rechargeable Lithium-poly 160mAh batteryHigh capacity battery provides up to 15 hours call time and 12-15hr music playtime at 40-50% volume (adequate for home/office with little noise interference)full charge in around 1-2 hours and up to 260 hours standby time.</br>4Perfect compatible : Clear HD audio for listening to Audiobooks Podcasts and Netflix?? decent for music and calls. The S580 is compatible with most Bluetooth enabled devices such as iPhone 5/5S/6/6S/7 Plus All Series??iPad 2/3/4/Air/Pro All Series?? Samsung Galaxy All Series?? iPod Nano Series?? Laptop&tablets and another Smartphones LG/SONY/HTC etc.</br>5. Support Stream Music/Video/Audio. Its hands-free function would release your hands from answering the call during driving or walking. ?????1 Year Worry-Free Warranty. 24-hours email contact service is available. Please let us know if you have any questions or concerns. We're standing by to assist you all the time.</br></br>Product Description</br></br><b>World's Longest Play time with 15 Hour Battery</b><br> NENRENT S580 is designed with Longest Play time and performance in mind?? The lightweight and Fashion shape of the S580 Headset S580 Ces a perfect f" only does the S580 offer a comfortable fit?? the earphone also sounds decent and offers 12-15 hours of battery life to get you through a day. *Audio playtime varies according to volume output level (dB) and audio content- a greater output yields a shorter battery life. Thus?? S580'S actual audio playtime will vary on different devices. tested multiple units with iPhone 6s<br><br><br> <b>Perfect Accessory for Your Versatile Lifestyle</b><br> Work: Stream music privately and leave 1 ear open to keep aware of your surroundings.<br> Home: Tune in on your favorite podcast while doing chores around the house.<br> Play: Fall asleep watching Netflix without disturbing your partner. (The S580 earpiece will no