Velleman # MK-171. Make your voice sound like a robot. Add vibrato effect. Use pitch buttons to make your voice higher or lower. Built-in microphone and power amplifier with volume control - just add a speaker. Speaker / line output. Maximum output power 1.5 W (4 Ohm). Operates on 9Vdc / 300 mA. 9 Volt battery not included.
Note: Kits cannot be returned or exchanged once assembly has begun.