Wireless Headphones SUPERLUX HDB311 BLACK:Enjoy listening to your favourite music without annoying cables. These Superlux wireless headphones have the popular compact and very discreet plug design. Their ear-covering design guarantees incredible insulation against background noise. These SUPERLUX HDB311 BLACK Wireless Headphones use Bluetooth for wireless connection to your devices. Say goodbye to bothersome cables. Using a frequency range of 20 to 20000 Hz, you will rest assured knowing that you wont miss a single beat of your favourite song.   These wireless headphones are also equipped with a microphone built-in. The volume of music or videos can be adjusted with the control wheel. This model can even pick up phone calls. You can easily replace the earplugs if needed. The package also includes a case for safer travel. SUPERLUX HDB311 BLACK Wireless Headphones Key Features Material of these wireless headphones from SUPERLUX HDB311 BLACK: closed Stylish black colour Volume control buttons Connection method is Bluetooth Wireless connection with Bluetooth gives you true freedom Weight of Superlux wireless headphones: 300 g The Superlux wireless headphones have a microphone as well Every user will appreciate the reliable microphone. The microphone on these Superlux wireless headphones guarantees flawless calling with your friends or family. This microphone is built right onto the cable of the wireless headphones. The SUPERLUX HDB311 BLACK wireless headphones microphone is designed with so-called omnidirectional pick-up. It is therefore suitable for more quiet rooms, where there will be little ambient noise.