WiNi-TECH Wireless Bluetooth Noise Cancelling Headphones with Built-In Microphone for Smartphones, Blue Fits comfortably and security in ear. Easy-to-connect and easy-to-use. Connects to most modern Bluetooth enabled smart phones and tablets No need to worry about cables getting in the way with these wireless headphones HANDS FREE: Built-in microphone allows you to answer and end calls BACKGORUND NOISE CANCELLATION: Reduces background noise for a better music listening experience