Brand JustgreenBox
88 Keys Professional Hand Roll Up Keyboard Piano Built in Dual Speakers 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