Music playing device

The invention provides a music playing device for controlling the volume by using a sandglass. The music playing device comprises a sandglass, two pressure sensing elements and a music playing module, wherein the sandglass is embedded between a first support seat and a second support seat; the two pressure sensing elements are respectively arranged between the inner surface of the first support seat and the sunglass as well as between the inner surface of the second support seat and the sunglass and is used for sensing the weight of sand grains drained by the sunglass in real time and generating a pressure signal; and the music playing module is electrically connected with the two pressure sensing elements and is used for receiving the pressure signal and adjusting the size of the playing volume according to the pressure signal. Due to the utilization of the playing device disclosed by the invention, the volume can be adjusted and closed without manual operation, the sleeping is facilitated and low carbon and environmental protection are achieved.