Features: Mini Wireless Transmission System – a low latency and high-quality MIDI system specifically designed for teaching, performance, and practice. Point-to-point MIDI Connection – replaces your traditional MIDI cable, providing a wireless and unrestricted experience. Advanced Protocol – new technology optimized for live use and performances, offering ultra-low latency, stable connection, and long-distance wireless coverage. Ultra-low Latency – the system implements wireless MIDI protocol directly in the firmware, reducing latency to as low as 3 milliseconds with an optimized connection algorithm. Safe and Stable – ensures a reliable and consistent connection. Rechargeable – MIDI B can be powered via adapter connected to power supply or PC; MIDI A features a built-in rechargeable lithium battery. Enhanced Shape Compatibility – unique curved cable design allows use with even rare vertical interfaces. Upgradable – system can be updated using included software and data cable. Specifications: Material: ABS Color: Black Operating Band: 2.4GHz Latency: Less than 3ms Range: Up to 10m Power Requirement: MIDI A has built-in lithium battery, chargeable via USB cable Battery Life: Up to 48 hours Charging Device: USB charging cable Battery Capacity: 240mAh Package Contents: 1 x MIDI-A Adapter 1 x MIDI-B Adapter 1 x Type-C Cable 1 x User Manual (English) Note: Light reflection and differences in display settings may cause slight color variations between the product image and the actual item. Measurement error allowed is +/- 1-3cm.