Wireless Headphones Sony WI-C310 blue:Enjoy listening to your favourite music without cables. The SONY wireless headphones have the common compact and discreet plug design. Their ear-covering design guarantees perfect insulation against surrounding noise. These Sony WI-C310 blue Wireless Headphones are equipped with Bluetooth technology for wireless connection to your device. Say goodbye to cables. With a frequency ranging 20 to 20000 Hz, you will know that you wont miss a single note of your favourite song.   These headphones also include a microphone. These wireless headphones from SONY are made with 5.0 Bluetooth. The volume of your music can be adjusted using the control wheel. This model can even pick up your calls. You can easily replace the earplugs if needed. The battery life is 15 hr(s). Sony WI-C310 blue Wireless Headphones Key Features Material of these wireless headphones from Sony WI-C310 blue: closed Beautiful blue colour Buttons to adjust volume Connection method is Bluetooth Wireless connecting through Bluetooth gives you ultimate freedom Weight of SONY wireless headphones: 19 g Fully charged battery life: 15 hr(s) The SONY wireless headphones also have a mic Every user is sure to appreciate the useful microphone. The microphone on these SONY wireless headphones will guarantee flawless calling with your friends and family. The mic is built right onto the cable of the headphones.