Bluetooth hand-free makes your life easy to receive calls without hands. Wireless Bluetooth headphones let you listen to the music on your iPhone or iPad entirely enjoy the music and new technology will allow you to set the level of noise cancellation. You can easily control the world, how much would come in. EQ volume optimized gives you the balanced audio performance of the volume. The dual-microphone system provides clear calling even in the windy and noisy environment. It easily connects with the devices with Bluetooth pairing. Bluetooth hand-free is light in weight and design conforms to your body and comfortable wear ability. A lithium battery gives up to 10 hours of wireless listening per charge Cord-free and hand-free calling