【Premium Hi-Fi Music】With customized 40mm drivers,Sungive wireless headphones shine through with thumping bass on the lows and crystal clarity on the highs, each beat to its very essence. Exhilarate your senses with details of musical experience. And latest Bluetooth V5.4 technology makes wirelessly stream high-quality sound from your Bluetooth devices without the messy cords. 【Superior Call Quality】Thanks to the combined built-in microphone with advanced audio signal processing technology. Sungive The Noise Cancelling headphones deliver a clearer voice quality for all your phone conversations. The additional microphone feature isolates sound while talking on the phone. Conversation flows freely with easy, hands-free calling. 【Pressure-Free Comfort】Sungive wireless noise cancelling headphones blend sophisticated style with exceptional comfort. Super-soft, pressure-relieving ear pads distribute pressure and increase ear/pad contact for a stable fit. With a light-weight design, you will barely notice you're wearing over-ear headphones. 【Long Battery Life & Dual Mode】Sungive Headphones are Rechargeable.500mAh battery,2 hours Fast Charing.After 30 hours of playtime, you can switch to wired mode and enjoy your music NON-STOP. You do not need to worry about power shortage problem for the long travel. 【Built For Your comfortability】They are foldable and stretchable, which allows you to find the perfect fit without constraint and excellent durability.Sungive is the best choice for travel, sport and daily use by Kids, Teens and Adults. Sungive Wireless Headphones Over Ear, Bluetooth 5.4 Headsets, Hi-Fi Stereo, Noise Cancelling, Built-in Microphone, 30 Hours Playtime, 3.5mm Jack, Lightweight for Phones, Computers, Games, Outdoors, Offices（Gray）