Mini Theremin Instrument — key benefits and features Compact electronic musical device with a color screen that visualizes waveform, frequency, volume, and pitch. Visual feedback helps you learn pitch control and monitor sound in real time. Over 70 voice options, including 20 traditional Chinese national instrument sounds, for a wide palette of timbres without extra modules. Selfcontained speakers plus a headphone output that automatically mutes the external speakers when headphones are plugged in, making the unit travelready and suitable for quiet practice. Pluggable, retractable antennas and compatibility with external metal rods or sheets to extend sensing range and improve sensitivity for finer control. Panel keys provide direct access to function settings including pitch indicator and sound modulation for handson control and quick adjustments. TypeC power interface lets you run continuously from a USB power source or power bank for extended portable use. Small and lightweight: dimensions 98 × 70 × 16 mm and net weight 107 g, easy to hold, store, and operate. Immediate, responsive performance after approximately 5 minutes of warmup. How this product solves problems Teaches and demos pitch and waveform behavior visually, removing guesswork for beginners and speeding up practice sessions. Offers many builtin voices so you can experiment with different sounds without carrying extra equipment. Builtin speakers plus headphone automute mean you can practice anywhere without disturbing others, and connect to headphones or external systems when needed. Retractable antennas and externalmetal compatibility let you tailor sensitivity and range for different performance spaces or playing styles. USB TypeC power support avoids proprietary chargers and enables simple continuous operation with a power bank. Functionality and compatibility Sound visualization: color display shows waveform, frequency, volume, and pitch. Voices: more than 70 voices, including 20 traditional Chinese national instrument sounds. Audio output: integrated speakers and a headphone jack that disables external speakers when used. Control: panel keys for pitch indicator, modulation, and other function settings. Sensors: pluggable, retractable antennas; compatible with external metal rods or sheets to extend sensing range. Power: TypeC input for charging and continuous play from USB power banks. Physical: 98 × 70 × 16 mm; net weight 107 g. Warmup: stable, immediate response after about 5 minutes of warmup. Practical use scenarios Practice and learning: use the color screen to visualize pitch and waveform during lessons or selfstudy; switch among 70+ voices to compare timbres, including 20 Chinese instrument sounds for cultural repertoire. Travel and street performance: lightweight and compact with builtin speakers and USB TypeC power allows quick setup with a power bank; headphone jack for discreet practice or quiet venues. Studio and sound design: use the device as a portable modulation and pitch source, plug into headphones or external recording gear, and attach external metal rods or sheets to finetune sensitivity for specific effects. What makes it stand out Combines thereminstyle, hands control with a color display for visual feedback. Large selection of builtin voices including authentic traditional Chinese instruments. Portable design with full audio and power flexibility: speakers, automuting headphone output, retractable antennas, and TypeC continuous power. Simple manual controls and externalsensor compatibility for both beginners and experienced performers. Specifications (as provided) Display: color screen for waveform, frequency, volume, and pitch visualization Voices: over 70, including 20 traditional Chinese national instrument sounds Audio: builtin speakers; headphone connection autodisables speakers Antennas: pluggable, retractable; compatible with external metal rods or sheets Controls: panel keys for function settings, pitch indicator, and sound modulation Power: TypeC interface; continuous play when connected to power bank Size: 98 × 70 × 16 mm Weight: 107 g Warmup: immediate response after approximately 5 minutes If you need more details about connections, operation modes, or compatibility with specific audio equipment, provide your setup and intended use and this product's controls and interfaces can be matched to it.