This is a Lenovo Thinkplus K30 portable Bluetooth speaker, featuring a metal shell and a 360-degree surround sound design.It utilizes Bluetooth 5.0 for stable connectivity up to a distance of 10 meters.The speaker is equipped with a 1200 mAh battery, providing approximately 6 hours of usage time.It includes a built-in microphone for hands-free calling and supports dual pairing functionality