Bluetooth Headphones Bluenin Neckband Retractable Wireless Headphones Sports Sweatproof Earbuds Noise Cancelling Earphone w/Mic for iPhone and Android Cellphones (Black)

Ergonomic Neckband Design Modern sleek design,chrome strips over the body,neck-behind wearing style provides a comfortable fit on your neck ,very flexible and lightweight,sit well without any pressure points on your neck,sometimes you forgot that the headset was on your neck. Bluetooth 4.1 and Hi-Fi Stereo Sound Featured with bluetooth 4.1 technology and advanced CSR8635 chips, ensuring faster and stable signal connection and transmission(The Bluetooth connection range is about 10meters/32ft, please pay attention to external signal interference). The CVC6.0 noise canceling technology allow you enjoy high quality sound and clearly calls even you are in a noisy environment. Vibrating Call Alert and Phone Number Announcement when a phone call comes in, the flexible bluetooth headphones will remind you with vibration and phone number reporting , will never miss any phone call when you are doing exercise or even in a noisy place. IPX4 Sweatproof IPX4 sweatproof sets free from worry of sweat damage while running, jogging, yoga in gym or biking running in drizzle raining days. Wide Compatibility Bluetooth headset can be connected to most of the bluetooth enabled devices.such as iPhone X / iPhone8/ iPhone 8 Plus/ iPhone 7 / iPhone 7 Plus , Samsung Galaxy S9 / S8 / Note 8 / S6 / S7 Edge, HTC 10/ Huawei P10 /P9, Sony devices,Lg devices, Bluetooth enabled TV, tablet, computer,etc. Specification:  Bluetooth?V4.1 Chip:CSR8635 Working Distance??10m (33 feet) Charging Time?? 2.5 hours Talk Time??14 hours  Music Time??14 hours  Standby Time??15 days What's in the box? 1 x Bluetooth Headphones 1 x USB charging cable  1 x User guide  3 x Ear tips(S, M, L)