5ive Bluetooth 4.0 Wireless Stereo Headphone Neckband Style for Apple iPhone Sumsang Lg iPad (Blue) Enhanced bass response and features such as apt-X technology, you will experience full, rich, authentic sound for your music and crystal-clear voice calls. Echo cancellation and noise reduction, no matter what you are doing,you can take your calls Supports HD voice and reconnect automatically. Can connect with two devices at the same time. Comfortable, Curved Fit for All-Day Wear.