M-VAVE Chocolate MIDI Controller BT Rechargeable 4 Buttons MIDI Controller Pedal APP Control with Wireless Transmission System 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. 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. Features: Mini Wireless Transmission System: a low latency and good quality MIDI system that it is specifically designed for teaching, performance, and practice. Point-to-point MIDI Connection: instead of your MIDI cable, it gives you a sense of wireless and unconstrained free experience. Specific Protocol: new technology more suitable for live and performance, with ultra-low latency connection, safe and stable connection and long-distance wireless coverage. Ultra-low Latency: MIDI system directly implements the wireless MIDI protocol in the firmware, so the latency time is reduced, as low as 3 milliseconds, optimized connection algorithm intelligently. Safe and Stable: MIDI system is used to establish a very stable connection. Rechargeable: MIDI B can be directly connected to the power supply or PC through the adapter to obtain the required power, MIDI A is equipped with a built-in rechargeable lithium battery. Better Shape Compatibility: unique curved cable design, even the rare vertical interface can also be used. Upgradable: use the supporting software to upgrade the system through the data cable. Specifications: Material: ABS Operating Band: 2.4GHz Latency: