Digital Electric Electronic Drum Simulation Pad Device for Beginner Training Practice Metronome with Retail Package + a Keychain Make your drum learning & exercise easier. Lightweight & portable, easy to carry, and easy to use. Test your tap tempo or a song tap tempo accurately. (Tap) Counting function included. (Count) Recognizied hand feeling of beating drum by specialized drummers, close to the feeling of leather drum. Optimizing design such as earphone preposition, external DC power, shockproof and skid-proof design. Digital LCD screen, performance with full dynamic range. Can adjust output volume for playing with other musicians.