This pair of headphone has great quality sound and inbuilt noise cancelling effect that will nullify all external noise and background noise. IT works on 4.1 Bluetooth technology that is available in most of the modern smart phone. These headphones are compatible with most of the smartphones including Apple devices, Samsung galaxy, HTC devices and windows phones. The box included USB charger for the headphone, extra ear buds , clip and beautiful small storage case for headphones. Due to very smaller size of case it is very easy to carry it in your gym or college bag. This one is best workout sweat proof Bluetooth headphones and also great for Running, Jogging, Hiking, Biking, Gym etc. Stay in Ear Tech with Comfortable Ear Hook. The Bluetooth headphones can be charged in 2 hours and has 7 hours of tremendous play time. Overall, I am truly impressed with the quality and comfort of this headphone. I think this headphones are pretty great.
Disclosure: This item was provided to me for evaluation and review