powerlocus wireless bluetooth over-ear stereo foldable headphones, wired headsets rechargeable with built-in microphone for iphone, samsung, lg, ipad (black/green) powerlocus product features<br><br><b>both wired and wireless features</b><br> - the over ear rechargeable hifi sound headphones are unique, as they can be used both wireless via bluetooth and wired via 3.5mm plug cable. great accessory which is compatible with all bluetooth enabled devices! even with low battery, the 3.5mm cable will not stop your music!<br><br><b>super lightweight design for maximum comfort</b><br>use them as hands-free<br><br>the headphones have specially built-in microphone which make them very convenient to use as hands-free calls!<br>more than 10 hours music playtime and calling talk time and more than 185 hours standby time!<br><br><b>superior quality sound and deep bass</b><br>clear sound and voice which stays clear even in the highest volume levels! cvc and noise relief technologies that will bring you extra joy when you listen to your favorite playlists!<br>supports fm radio,dj radio arbitrary listen.<br>supports wireless connectivity with pc, ps4, xbox and tv which have additional bluetooth adapter- transmitter.<br><br><b>specification:</b><br>1. bluetooth specification: bluetooth 5.0+edr<br>2. bluetooth profile: a2dp1.2/avrcp1.0/hsp1.0/hfp1.5<br>3. frequency digital signal processing technique: cvc 6.0 dual microphone noise reduction echo cancellation<br>4. loudspeaker frequency response: 110hz ̈c 20,000hz<br>5. type of loudspeaker: dynamic<br>6. loudspeaker diameter: 40 mm<br>7. loudspeaker impedance: 32 ohm<br>8.battery model: lithium polymer battery 300mah<br>9.music playback time: 15-16 hours<br>10. talk time:15~16 hours<br>11. charging time:2.5hours<br>12. charging port: micro usb type<br>13. rf range :10 m/33ft without any obstacles<br>14. microphone sensitivity: -42 db<br>15. weight: 165g/0,32lb<br><br><b>package includes</b><br>1.powerlocus wireless bluetooth over-ear headphones<br>2.charging usb cable<br>3. premium looking case holder<br>4. 3.5mm aux audio cable<br>5. user manual