Description: 【Multiple Sound Effects】The igital Metronome offers four different beat effects, including vocal counting, mechanical sounds, electronic sounds, and cowbell sounds. Easily switch between sound effects to make practice more fun and satisfy various musical preferences. 【High Definition Display】The Tone Generator features a large backlit high definition screen that clearly displays tempo and beat information. A green indicator light flashes with the rhythm, making it easy to keep up even in low light conditions. 【Adjustable Volume and Connection】Easily adjust the volume using the side scroll wheel for loud or silent practice. Supports connection to external headphones or speakers via the Type C charging port for an immersive or silent practice experience. 【Portable and Easy to Use Design】The Electronic Metronome is compact and lightweight (15cm x 6.5cm x 2.3cm / 5.91inch x 2.56inch x 0.91inch), making it easy to carry and operate with 1 hand, ideal for performances or outdoor practice. The foldable stand on the back allows for convenient placement on a table. 【Wide Compatibility】The Musical Instrument Accessories is suitable for a wide range of instruments including piano, violin, guitar, saxophone, guzheng, , and more. Simple controls ensure quick setup, allowing musicians of all ages to immediately begin practicing rhythms, making it ideal for both children's lessons and professional rehearsals. Specification: Beat length: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 Temperature: 30-250 beats/minute Sound: Human voice/mechanical/electronic/cowbell Charging port: Type C Battery: 3.7V/1200mAh Size Chart: 15cmx6.5cmx2.3cm/5.91inchx2.56inchx0.91inch Package Includes: 1 set Electronic Metronome Note: Please allow slightly errors due to manual measurement and different monitors.