Amazing sound qualityGiving you superior audio in a wireless design, the Groov-e Ultra GV-BT750-BK Wireless Bluetooth Headphones are perfect for on-the-go listening. They feature 40 mm drivers that deliver high quality sound and dynamic bass, so each track in your playlist will sound incredible.Wireless designWith Bluetooth 5.0 you can easily connect the headphones to your smart device for wireless listening. There's also a microphone and controls on the earcup, so you can answer a call or skip tracks without ever reaching for your phone.You can even ask your voice assistant to turn up the volume or add a reminder to your smartphone.30 hours of playbackWith its comfy padded headband and up to 30 hours of playback time, you can listen to the songs you love all day long. You can also connect the headphones to your smart device or computer with the detachable cable - perfect for when you want to save some battery power for the trip home from work.Wireless ChargingApart from traditional cable-charging via USB, you can also place the Ultra GV-BT750-BK on a compatible wireless charging pad (sold spearately). This way you get them charged and keep them stored tiddly at the same time.