Features: Mini Wireless Transmission System: A low-latency, high-quality MIDI system designed for teaching, performance, and practice. Point-to-Point MIDI Connection: Replaces traditional MIDI cables, providing a wireless and unrestricted experience. Specific Protocol: Advanced technology optimized for live use and performance with ultra-low latency, stable connection, and extended wireless range. 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 wireless connection. Rechargeable: MIDI B can be powered via adapter connected to power supply or PC; MIDI A features a built-in rechargeable lithium battery. Better Shape Compatibility: Unique curved cable design allows compatibility even with rare vertical interfaces. Upgradable: System can be updated using compatible software via data cable. Specifications: Material: ABS Color: Black Operating Band: 2.4GHz Latency: Less than 3ms Range: Up to 10 meters Power Requirement: MIDI A powered by 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 Manual (English) Note: Light reflection and different displays may cause slight color variations between the item in the image and the actual product. Measurement tolerance allowed is +/- 1-3cm.