Reddit reviews NENRENT S570 Bluetooth Earbud,Smallest Mini Invisible V4.1 Wireless Bluetooth Earpiece Headset Headphone Earphone with Mic Hands-Free Calls for iPhone iPad Samsung LG HTC Other Smartphones 1pcs ,Black

Ergonomics Design: The NENRENT S570 Earbud is designed according to ergonomics and the S570 is smallest bluetooth Earbud in currently, Fits either ear, wear the bud on right ear for better call clarity.Bluetooth issc 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.Longest Service Time: Built-in high performance rechargeable Lithium-poly 60mAh battery,High capacity battery provides up to 6 hours call time and 4-6hr music playtime at 40-50% volume (adequate for home/office with little noise interference),full charge in around 1-2 hours and up to 130 hours standby time.Perfect compatible : Clear HD audio for listening to Audiobooks, Podcasts and Netflix, decent for music and calls. The S570 is compatible with most Bluetooth enabled devices such as iPhone 5/5S/6/6S/7 Plus Series,iPad 2/3/4/Air/Pro Series, Samsung Galaxy S5/S6/S7,Galaxy Note 3/4/5 Series, iPod Nano Series, Laptop&tablets and another Smartphones LG/SONY/HTC etc.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.