Easy on the eye, and on the ear, these stylish on-ear Bluetooth headphones feature a smooth, shiny-finish gun-metal exterior. Adjustable and foldable, theyre not only comfortable, but they provide crisp and clear sound quality. Use them for listening to music and podcasts or watching videos, and the built-in microphone facilitates easy calling, with clear sound at both ends of the call. Pair the headphones once with your device (phone, tablet or laptop), and you wont need to do so again they will automatically pair thereafter, as soon as you turn the headphones on, providing your device has Bluetooth mode switched on. 17 ( l ) x 19 ( w ) x 7 ( h ) cm ABS & PU charging cable, 3.5mm jack audio cable and user manual are included Bluetooth version 5.3 Bluetooth distance: 10 metres frequency range: 20Hz – 20kHz built-in microphone supports call pick-up battery: 360mAh playback time: 8 10 hours sensitivity: 98 + 3dB at 1000Hz type-C charging port input: 5V/1A packaged in a Swiss Cougar gift box