Bluetooth Headphones, Pobon Sweatproof V4.0 Wireless Neckband Noise Reduction Earbuds Earphones with Microphone for iPhone 7/7 Plus, Hands-Free Stereo Headset with Magnet Holder for Light Sport -Black 1. HD Stereo & Noise Reduction: Built-in HD Microphone, with excellent sound effect collection, superior sound isolation, provided steady Bluetooth signal and support HD stereo lossless music. 2. Built-in 160mAh rechargeable Lithium-poly battery, lasts up to 7-8 hours talking/ playing time, about 2 hours charging time, up to 15 days standby time, so it's the perfect entertainment for relaxing at home, doing things around the house, making dinner, etc. Just enjoy it everywhere and anytime. Support IOS DEVICE POWER DISPLAY. 3. COMFORTABLE TO WEAR & SWEATPROOF HEADPHONES: Sweatproof and ergonomic in-ear headphones design to specifically fit the contours of your ears, light weight, very comfortable when putting it over your neck and doing sports. 4. Bluetooth V4.0: Supporting 33ft (10meters) working range. Easy and fast pairing with smartphones, tablets and other Bluetooth enabled devices. Connected with TWO smartphones or Tablets simultaneously. Great compatible with iPhone, Samsung, LG, HTC, Sony, BlackBerry, Motorola, iPod, iPad etc. 5. Simple-to-use: Control all functions of your music (volume, sound, song selection) and calls from your phone via our simple-to-use user interface controller. Pobon Neckband Bluetooth Headset includes 45 days money-back & 18-month worry-free warranty, and friendly customer service. Please reach out to us first if you have any issue, thanks.