Features: Equipped with a color screen display, this device can show waveform, time frequency, volume, pitch indication, and corresponding piano key display. Various function settings can be accessed through the panel keys. Offers over 70 built-in sounds, including more than 20 traditional Chinese musical instrument tones, providing versatile sound options. Designed for playability and makes a great gift. Built-in speaker allows sound playback directly from the unit. When headphones or other audio devices are connected, the external speaker automatically turns off. Includes a plug-in, extendable, and retractable antenna for convenient storage. Compact and lightweight design for easy handling and portability. Powered via Type-C USB interface, allowing convenient charging and use with portable power banks for on-the-go operation. Size: 98 x 70 x 16 mm / 3.86 x 2.76 x 0.63 inch Material: ABS Color: Black Package Contents: 1 x Electronic Instrument 1 x Type-C USB Cable 2 x Antenna Note: Light reflection and differences in display screens may cause slight variations between the color shown in the image and the actual product. Measurement error allowance is +/- 1-3 cm.