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: 117 dB/mW, impedance: 25 Ohm, converter: 13mm, battery life of up to 12 hr(s) (4 hr(s)+8 hr(s)) Enjoy listening to your favourite music without cables. Their semi-closed construction boasts perfect, clean sound, which sounds amazing. The DeFunc TRUE Basic Red Wireless Headphones are equipped with Bluetooth for wireless connection to your device. No more bothersome cables. Using a frequency range of 20 to 20000 Hz, you will rest assured knowing that you won't miss a single beat of your favourite song.   These wireless headphones are also equipped with an integrated microphone. These wireless earphones from DeFunc are made with 5.0 Bluetooth technology. The volume can be changed using the control wheel. This model can even pick up calls. This model is...