If you´re passionate about.IT and electronics, like being up to date on technology and don´t miss even the slightest details, buy.Headphones with Headband Sony WH-CH520 Blue.at an unbeatable price. Characteristics:Wireless.On/off interrupter.Built-in microphone.Guarantee.Installation guide included.LED charge indicator light.Built-in battery.Fast charging.Connections:USB.USB-C.Approx.charging time:3 hours.Colour:Blue.Design:Headband.Approx.autonomy:50 hours.Built-in microphone:Yes.Type:Headphones with Microphone.Material:Plastic.Leatherette.Connectivity:Bluetooth.Wireless.Bluetooth 5.2.Type of headphones:External circumaural.External supraaural.Voltage:3,7 V.Range:10 m.Compatible:Google Home.Control:Buttons.Battery:Yes.Recommended age:Adults.Headphones:Binaural.Frequency:2,4 GHz.Recommended use:Calls and music.Battery type:Litio Ion.Rechargeable lithium battery.