Wireless Headphones DeFunc TRUE Plus Black:Enjoy listening to music without tangled cables. Their semi-closed construction will guarantee perfectly clear sound, which sounds incredible. The DeFunc TRUE Plus Black Wireless Headphones utilize Bluetooth technology for wireless connection to your device. Say goodbye to annoying cables. Using a frequency range of 20 to 20000 Hz, you can rest assured knowing that you wont miss a single beat of your favourite song.   These wireless headphones are also equipped with an integrated microphone. These wireless earphones from Garmin Czech s.r.o. are equipped with 5.0 Bluetooth technology. The volume of your music is adjustable via the control wheel. This model can even pick up your calls. This model is totally wire-free, so they are true wireless earphones. You can easily replace the earplugs if needed. The package also includes a case for travelling. The DeFunc TRUE Plus Black are made with a water resistance rating of IPX4. The battery life is 35 hr(s). DeFunc TRUE Plus Black Wireless Headphones Key Features Material of these wireless headphones from DeFunc TRUE Plus Black: semi-closed Stylish black colour Volume level control buttons Connection method: Bluetooth Wireless connecting via Bluetooth gives you complete freedom Fully charged battery life: 35 hr(s) These Garmin Czech s.r.o. wireless headphones have a microphone as well Every user will appreciate the handy microphone. The microphone on these Garmin Czech s.r.o. wireless headphones will guarantee flawless voice calling with your friends and family. It is built right into the wireless headphones design.