BEST SELLER - One of Japan’s Best-Selling Musical Instrument Portable Synthesizer Toys! FUN & EASY TO PLAY - Slide Your Fingers Along The Stem to Vary The Pitch and Squeeze The Cheeks for Vibrato CREATE YOUR OWN SOUND - Play in a low, medium, or high pitch - get together with friends and create harmony! GREAT FOR ALL AGES - Kids, teens, and adults all love the Otamatone! Whether you’re brand new to music or an expert musician, the Otamatone offers a fun, silly new way to make music! ?AAA Batteries ×3 ?Body Size: Approx 27 cm Size W2.63 × H10.62 × D5.23in ( W67 × H270 × D133mm ) Powered by 3 AAA batteries Includes Practice sheet, Test batteries