Description 100% quality assurance. ?SPECIFICATIONS ? Keyboard: 37 HQ (High Quality) Mini keyboard Sound source: AWM stereo sampling Maximum simultaneous sounds: 48 Number of voices: 30 Supported formats: GM Effects: reverb, chorus, 9 DSP types Presets: 3 songs JAM function: ? (5 modes) Overall settings: tuning, Modulation, pitch bend range, portamento, DSP, MIDI switching, transpose, octave, shift, USB audio interface function (44.1 kHz, 16-bit, stereo) Bluetooth connection: Bluetooth (Ver 4.0 GATT compatible) ?Compliant with Bluetooth Low Energy MIDI Specification Transmit frequency range: 2402-2480MHz Maximum radio output power: 4dBm Other operators: pitch bend wheel, modulation wheel, transpose button, octave button, fast reverse button, play/pause button, fast forward button, sustain button, effect control knob, select knob, effect selector Display: LCD with backlight 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: ? ?MIDI mini DIN IN/OUT ?DC IN ? Acoustics: Amp output: 0.7W, Speaker: 3.6cm Power supply: ?Power adapter: PA-130B (or equivalent recommended by Yamaha) ?Battery: AA Batteries: AA (alkaline/manganese/rechargeable nickel-hydrogen batteries) x 6 (sold separately) Power consumption: 3W (with power adapter PA-130B) Battery life: Approx. 10 hours (with alkaline batteries), 8 hours (with rechargeable nickel-hydrogen batteries) Auto power off: ? Dimensions and weight: (W)821mm x ( Dimensions and Weight: (W)821mm x (D)121mm x (H)65mm, 1.5kg (excluding batteries) 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.