Specification: 1.Keyboard:88 standard keys;  2.15 demo songs,128 rhythms,128 tones;  3.Sound Effect:Vibrato, Sustain;  4.Chord:single finger chord,fingered chord,synchronous chord;  5.Hardware: 64 chord, with 2 channel 16 bit DAC output, inbuilt power amplification circuit;  6.Recording function with 60 recording notes(note on and note off),playback;  7.Digital LED display for tones,rhythms and demo;  8.Built in dual speakers,can connect with headphone or amplifier;  9.USB output:connect with computer for composing or for products charging or power supply;  10.Built in 2000mA lipo battery,working lasting for 20-25 hours,using mobile phone adapter for power charging;  11.Power output:500MW;    Features: -Small and portable, easy to carry and store;  -Press the Tim key to select among 128 timbres(tones)(000-127);  -Press the Rhy key to select among 128 rhythms(000-127);  -Headphone and extemal speakers are available;  -Connect PC with USB cable,ensuring easy composing;  -Record when in practice playing piano;    Note: 1.User Manual;  2.The phone is not included;    Package Included: 1*Hand Roll Up Piano;  1*Pedal;  1*Cable;  1*Bag