Feature: 1. [Multi Functional] Features 200 tones, 200 rhythms, 35 demos, volume control, tempo control, transpose, OKON, sustain, vibrato, and beat. Offers a wide range of sound options for creating various music styles. 2. [Dual Power Mode] This electronic piano keyboard can be powered by USB or 3 AA batteries (not included). Flexible for use anytime, anywhere. 3. [Song Recording and Playback] The keyboard has song recording and playback function, allowing you to record and play your own works, suitable for practicing, composing, and improving music skills. 4. [Multiple External Jacks] Equipped with microphone, sound input, phone, and Type C USB jacks. Includes microphone, USB cable, and sound cable for a complete music experience. 5. [Portable Size] Compact and portable, this electronic piano is convenient to store and carry, suitable for beginners and experienced players. Specification: Item Type: 37 Key Electronic Keyboard Material: Plastic Model: BF 520 Size: Approx. 520x195x50mm / 20.47x7.68x1.97in Features: 37 keys, 200 tones, 200 rhythms, 35 demos, volume control, rhythm control, modulation, OKON, sustain, vibrato, beat Battery: 3 x AA batteries (not included) Package List: 1 x 37 Key Electronic Keyboard (Without Battery) 1 x Microphone 1 x USB Cable 1 x Sound Cable 1 x User Manual