Wireless Headphones - with microphone, earplugs, closed construction, Bluetooth 5.0, supports AAC and SBC, voice Assistant, frequency range: 20 Hz-20000 Hz, converter: 12mm, battery life of up to 15 hr(s) Enjoy listening to music without tangled cables. The SONY wireless headphones have the common discreet and compact plug design. Their ear-covering design guarantees amazing insulation from background noise. These Sony WI-XB400, Blue Wireless Headphones have Bluetooth technology for wireless connection to your devices. Say goodbye to cables. Using a frequency range of 20 to 20000 Hz, you can rest assured knowing that you won't miss a beat of your favourite song.   These wireless headphones are also equipped with a built-in microphone. These wireless earphones from SONY have 5.0 Bluetooth. You can easily replace the plugs if necessary. A fully charged battery will last 15 hr(s). Sony WI-XB400, Blue Wireless Headphones Key Features Material of these wireless...