Celly FREEBEAT Wireless Over-ear HeadphonesTurn up the volume!With FREEBEAT you can listen to your music or make calls talk in total freedom with maximum sound quality and 8 hours of battery life.Thanks to the adjustable headband and the padded ear cups, FREEBEAT can be adapted to all sizes and provides maximum comfort throughout the day.The buttons and the integrated microphone also makes it convenient to manage calls and music directly from the headphones.FREEBEAT are equipped with a USB-C socket for charging and a 3.5 mm connection to be able to use the headphones even with cable (cable included in the package).Specifications:Frequency range: 20-20,000 HzSensitivity: 3 dB Technology: BluetoothBattery time: 8 hoursCharging: USB-CWeight: 298 gColour:Black