Otona no Kagaku Premium Theremin

Otona no Kagaku Series Theremin Premium

The outer box has stains and tears due to age.
Batteries are not included.
The ground wire has deterioration and dirt.

A simple operational check was performed for this listing. The pitch and volume were confirmed. It is difficult for an amateur to adjust, and I do not understand it well.

Product Description
(Excerpt from the homepage)
The Theremin was invented in the 1920s by Russian scientist Theremin. It is said to be the originator of electronic musical instruments, including modern synthesizers. The sight of playing it by moving your hands in the empty air without touching the instrument is like watching an elegant dance. The analog electronic sound produced has a mysterious nostalgia.
Features
A genuine model where you control pitch with your right hand and volume with your left hand.
Compact and lightweight with a built-in speaker, so anyone can play anytime, anywhere.
It can also be connected to an amplifier or a speaker with an amplifier, allowing for various musical expressions.
Specifications
[Series Name] Otona no Kagaku Series
[Product Name] Theremin Premium
[Product Contents] Main unit, antenna, accessories (ground band, adjustment screwdriver), instruction manual
[Target Age] Junior high school students to general public
[Main Unit Weight] 345g (excluding batteries)
[Assembled Size (mm)] W220 x H36 x D120mm (excluding antenna)
[No Assembly Required] Insert batteries and attach the antenna and ground band to complete.
[Batteries] 4 AA alkaline dry batteries (sold separately)
[Country of Origin] China
[Instruction Manual] Yes
Theremin Premium ¥9,500 (excluding tax)

A multifunctional theremin that allows adjustment of volume and pitch.

- Model Name: Theremin Premium
- Volume Adjustment: Master Volume
- Pitch Adjustment: Pitch Trim
- Power Status: On/Off Switch
- Power Supply: Uses 3 AA batteries