Wireless Headphones DeFunc TRUE GO White:Enjoy listening to music without annoying cables. The semi-closed design will ensure perfect, clean sound, which sounds incredible. The DeFunc TRUE GO White Wireless Headphones use Bluetooth for wireless connection to your devices. Say goodbye to tangled cables. Using a frequency range of 20 to 20000 Hz, you can be sure that you wont miss a single beat of your favourite song.   These headphones also have a built-in microphone. These wireless headphones from DeFunc use 5.0 Bluetooth technology. The volume is adjustable via the control wheel. This model can even pick up your calls. This model is totally without wires, so true wireless. The package also includes a case for travel. The DeFunc TRUE GO White have a water resistance rating of IPX4. A fully charged battery will last 22 hr(s). DeFunc TRUE GO White Wireless Headphones Key Features Material of these wireless headphones from DeFunc TRUE GO White is semi-closed Stylish white colour Volume level control buttons Connection method is Bluetooth Wireless connection with Bluetooth gives you true freedom Single charge battery life is 22 hr(s) These DeFunc wireless headphones have a microphone as well Every user is sure to like the reliable microphone. The microphone on these DeFunc wireless headphones will guarantee uninterrupted connection with friends and family. The microphone is built right into the headphones design.