Wireless Headphones - with microphone, True Wireless pits, semi-closed construction, Bluetooth 5.0, supports SBC, taking calls, with volume control, IPX4 certification, frequency range: 20 Hz-20000 Hz, sensitivity: 104 dB/mW, impedance: 32 Ohm, converter: 13mm, battery life of up to 35 hr(s) (6 hr(s)+29 hr(s)) Enjoy listening to music without annoying cables. Their semi-closed design boasts perfect, clean sound, which sounds incredible. These DeFunc TRUE Plus Black Wireless Headphones utilize Bluetooth for wireless connection to your device. No more bothersome cables. With a frequency ranging 20 to 20000 Hz, you can enjoy knowing that you will not miss a note of your favourite song.   These wireless headphones even include and internal microphone. These wireless headphones from Garmin Czech s.r.o. have 5.0 Bluetooth. The volume of your music can be adjusted with the control wheel. This model can even pick up phone calls. This model is completely wire-free, so...