2 ● miniEngine USB has a USB HOST unique design, you can discard tedious MIDI cable to connect directly using a USB cable to miniEngine USB connection with your MIDI devices, MIDI data transfer is complete. ● Support USB HOST MIDI IN and simultaneously, a bomb piano accom- paniment, a piano playing the melody, wherever can form a small band. ● miniEngine USB is not only small and exquisite, powerful, and easy to operate. Support miniEngine USB and MIDI devices simultaneously. ● With the Program, Volume and Reverb adjustment function, easy operation, ready to program the tone, volume and reverb effects as you want. ● Built-in 2500mAh rechargeable lithium battery that can power your MIDI device (USB output current ≤ 500mA); it will be able to use our sound sources as long as your USB-powered accepts MIDI device, MIDIPLUS keyboard theoretical power supply can stay up to 5 hours. The music really makes you carry out no longer have to worry about supply problems. ● In order to better protect the battery and prolong battery life, miniEngine USB will indicate when the battery is less than 15% into the "low battery indicator status", the screen and LED will flash once every 5 seconds. When the battery is below 10%, the screen and LED will blink quickly. The power will automatically shut down when less than 5%. ● miniEngine USB device's USB port (USB HOST) provides a standard USB 5V 500mA current output, your mobile phone can act as emergency mobile charger. ● Power supply: Everywhere Micro-USB charging / power supply (mostly the USB interface on the phone, such as Samsung), you can charge for our audio / power with your phone charger,supply; If you are using the iPhone do not worry, the annex with Micro-USB interface cable, as long as this cable into your iPhone's charging head, you can charge / power supply; You can also connect to any USB port (PC using the Micro-USB interface cable, MAC, mobile power supply, etc.) on miniEngine USB charging. ● Interface: 3.5mm TS audio output interface, MIDI input interface, USB HOST Interface (USB peripherals), Micro-USB charging / power connector. Control and Interface