Features: Serving as a sound mixer and metronome, a great helper for beginners. Compact and exquisite in appearance, convenient to carry. Two ways to pick up signals, built-in microphone or pickup cable. Super bright backlight, LCD display (5.2 * 2.6cm), providing excellent visibility. There is a bracket on the back, making it easy to stand on flat ground. Powered by 2 AAA batteries (not included). Automatic shutdown function, if there is no signal or operation within 3 minutes, the device will automatically shut down. It can be used for tuning guitar, chromatic scale, bass, violin, and ukulele. Specifications: Tuning modes: chromatic scale, guitar, bass, violin, ukulele Pitch: 430-450Hz Speed accuracy: 0.5% Speed range: 30-260bpm Beat: 0,1,2,3,4,5,6,7,8,9 Rhythm: 9 types Mixing mode: microphone, pickup cable Power supply: 2 * AAA battery (not included) Display size: approximately 5.2 * 2.6cm/2 * 1 inch Product weight: 65g/2.3oz Packaging size: 13 * 8 * 2.2cm/5.12 * 3.15 * 0.87in Packaging weight: 150g Notes: 1. Please allow 1-2 cm error due to manual measurement Thanks for your understanding 2. monitors are not calibrated same, item color displayed in photos may be showing slightly different from real objects Package List: 1 * Electronic Tuner 1 * Pickup truck _x000D_