Features: Portable MIDI foot controller pedal is small and exquisite, with easy-to-use 4 foot switches. Wireless MIDI pedal with intelligent APP(CubeSuite) control, easy to operate, convenient to use. Bulit in 300mAh rechargeable lithium battery, charging for 2.5 hours, can be used for 12 hours. The display screen can directly feedback the commands you issued, intuitive and clear. Compatible with Wins, iOS, Android and other platforms.  The difference of plus version  Hardware HOST for controlling the effects via direct connection; MIDI code advanced customisable cut bank; Keyboard customised key combinations,(Ctrl, Shift, Alt, Win/Command) Keyboard key combination can cut bank BLE control of other effects with BLE-MIDI SYSEX Length (Byte) 200  Specifications: Material: Metal Power Input: DC 5V Working Current: 45mA Battery: 300mAh APP: CubeSuite Item Size: 212 * 36 * 17mm / 8.35 * 1.42 * 0.67in Item Weight: 236g / 8.34oz Package Weight: 295g / 10.43oz Package Size: 22.5 * 4.5 * 4cm / 8.86 * 1.77 * 1.57in  Packing List: 1 * Controller 1 * Charging Cable 1 * Manual (English)  Note: It support a variety of electronic spectrum turning software: 1. Android System: you can turn pages by opening PDF or pictures. 2. iOS Pad or iOS Phone: you need to buy any of the following software: forScore, OnSong, Foxi PDF, NextPage, GoodNotes, MobileSheets, SongBook, unrealBook for opening PDF. And Paperless Music, piaScore for opening picture.