Description 100% quality assurance. Specifications Keyboard Sound Keyboard: 37 HQ (High Quality) Mini Keys Sound Engine: AWM Stereo Sampling Max Polyphony: 48 notes Voices: 30 Supported Format: GM (General MIDI) Effects: Reverb, Chorus, 9 types of DSP Preset Songs: 3 Performance Features JAM Function: Yes (5 modes) Global Settings: Tuning, Modulation, Pitch Bend Range, Portamento, DSP MIDI Switching, Transpose, Octave Shift USB Audio Interface Function (44.1kHz, 16-bit, Stereo) Bluetooth Connectivity Bluetooth: Ver. 4.0 (GATT compliant) Compliance: Bluetooth Low Energy MIDI Specification Transmission Frequency Range: 2402?2480 MHz Max Wireless Output Power: 4 dBm Controls Pitch Bend Wheel, Modulation Wheel Transpose Button, Octave Button Rewind, Play/Pause, Fast Forward Buttons Sustain Button, Effect Control Knob, Select Knob, Effect Selector Display Backlit LCD Connections AUX IN: 3.5mm Stereo Mini Jack LINE OUT: 6.3mm Mono Standard Phone Jack PHONES: 3.5mm Stereo Mini Jack USB TO HOST: Yes MIDI: Mini DIN IN/OUT DC IN: Yes Audio Power Amplifier Output: 0.7W Speaker: 3.6cm Power Source: AC Adapter: PA-130B (or Yamaha-recommended equivalent) Batteries: 6 AA (Alkaline/Manganese/Ni-MH rechargeable, sold separately) Power Consumption: 3W (with PA-130B adapter) Battery Life: ~10 hours (Alkaline) ~8 hours (Ni-MH rechargeable) Auto Power-Off: Yes Dimensions Weight Size (WDH): 821 121 65 mm Weight: 1.5 kg (without batteries) Included Accessories AC Adapter Strap MI About Us -----Important----- Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer?s responsibility. Please check with your country?s customs office to determine what these additional costs will be prior to bidding or buying. Customs fees are normally charged by the shipping company or collected when you pick the item up.These fees are not additional shipping charges. We won't under-value merchandise or mark the item as a gift on customs forms.Doing that is against U.S.and international laws.