I'm not sure about the exact sounds or sound quality, but it produced beautiful sounds and I was able to do something that felt like playing. Brand: BIG BRIAR Product Name: Etherwave Theremin Notes: Overall clean, but there are minor scratches that are barely noticeable. ◎Set Contents◎ ・Main unit ・Antennas (2) ・Power cord ・Instruction manual (Japanese) ・Instruction manual (English) ・Warranty ・Pamphlet (English) ・Video tapes (2) ・Shields (3 types) ・Stand (microphone stand) ・Amplifier speaker Everything in the photos is included. Will be wrapped in bubble wrap and shipped in a cardboard box, with the fastest shipping being same-day and the latest being the next day. ◎Product Introduction◎ The theremin is one of the oldest electronic musical instruments, widely known for being played "without touching." You control the pitch and volume by moving your hands in the air towards the two antennas. Like the Ethervox, the Etherwave is a modern revival of the original theremin by Lev Theremin. POWER: Rocker switch: This is the power switch for the unit. AUDIO OUT: Standard jack (1/4 inch) audio output terminal. Connects to instrument amplifiers and recording equipment. PITCH: Rotary knob: Adjusts the response of the pitch antenna. VOLUME: Rotary knob: Adjusts the response of the volume antenna. WAVEFORM: Rotary knob: Adjusts the output waveform (timbre) of the unit. BRIGHTNESS: Rotary knob: Adjusts the brightness of the sound. POWER INPUT: Connect the plug of the dedicated AC adapter. Antenna connector: Allows you to remove the antennas for transport, etc.