1、Fast Signal Transmission and Foldable Design: Bluetooth 5.0 signal transfer connection is faster and more stable. Folding storage removable single horn, cat ear. 2、Adjustable Size and Universal to Use: High tenacity ABS, flexible adjustment, suitable for a variety of different head types. 3、Volume Limits: Hearing protection Volume limiter technology tightly controls volume standards with a built in volume limiter that does not exceed 85 decibels. 4、Dual Use and Long Standby Time: Removable 3.5 interface cable, both wired and wireless. The standby time is 300 hours, the charging time is 2.5 hours. 5、Fashion and Lovely Appearance and Enjooyment: Unique cat ear design, cute and interesting, loved by children. The time of endurance is 20 hours, providing wonderful listening enjoyment.