Features: A variety of function Settings: equipped with color screen display, waveform/time frequency/volume can be displayed, as well as pitch indication and the corresponding piano pitch display, through the panel keys can achieve a variety of function Settings. Variety of sounds: There are more than 70 sounds to choose from, including more than 20 traditional Chinese Musical Instruments. It is very playable and perfect as a for friends. Built-in speaker and pluggable antenna: In addition to connecting audio devices such as headphones, it can also play sound through the host's own speakers. When the audio device is connected, the external speaker will automatically turn off. Equipped with the antenna can be plugged, stretched, retracted, storage is very convenient. Small appearance, easy to charge: the overall appearance is small and exquisite, easy to hold and play. With Type-c interface power supply, as long as you plug in the charging bank, you can play games anytime and anywhere. It is very convenient to use and cost-effective. Size: 98 x 70 x 16 mm / 3.86 x 2.76 x 0.63inch Material: ABS colour: black Package Contents: 2 x electronic instrument 2 x Type-c USB cable 4 x antenna Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.