Item Type: Foldable Electronic Solid Piano Battery Type: Lithium battery 1650mAh Expanded Size: Approx. 137.3 x 16.5 x 4cm / 54.1 x 6.5 x 1.6in Folded Size: Approx. 68 x 16 x 8cm / 26.8 x 6.3 x 3.1in Weight: 2.58 kg / 5.7 lb(approx.) Power Adapter: 5V/1A Lithium Battery Voltage: 3.5V or more Package List 1 x Electronic Piano 1 x Headphone 1 x Sustain Pedal 1 x Charging Cable 1 x User Manual 1 x Note Stickers 1 x Piano Bag 1Foldable by 180, more flexible, portable and saves a lot of space. Can be folded to take on an airplane or put in the trunk. The folded size is 68x16x8cm. The weight is only 2.58kg, even a girl can easily move 2MIDI/USB interface allow connect to computers and other smart devices, edit and create your music. Support wireless dual BT 5.0, audio and MIDI signal transmission, compatible with many popular apps such as for Cubase/POPMusic/Nuendo, etc. 3Intelligent teaching, you can play the piano with the lights, suitable for beginners of all ages, entertainment or performance 4Sample the sound source of traditional performance-grade piano and experience the original piano sound. 88 full-size tactile keys can make your performance more musically expressive, and enjoy the tactility accurately reflected by your playing 5The keyboard has 128 rhythms, 128 tones and 20 demos to make learning more interesting. In addition, recording, sustain, metronome, drum kit, dual voice, and transposition functions are essential for beginners 6Velocitysensitive keyboard 22MM, 88 standard piano keys with velocity, through different key velocity, you can get delicate changes in tone, with diversified functions and velocity touch keys, display real music dynamics, play music more rich and delicate, support dual keyboard function 7Builtin dual HIFI stereo speakers, nondestructively restores the real piano sound, the sound line is full and delicate, full of threedimensional feeling, which can produce shocking effects on the spot. Support headset mode, do not disturb people when practicing late at night