Feature: 1. With functional indicator light, use, debugging more intuitive and convenient. 2. High strength aluminum alloy shells, wear-resistant and practical, suitable for various performance scenes. 3. Using a combination of frosted and brushed process, high grade atmosphere. 4. The use of silicone pads, shockproof and skid resistant, suitable for various performance scenes. 5. The use of high-grade metal frame MIDI port, longer plug life. Specification: Fine quality, long service life, can be converted from USB to MIDI, convenient and practical. Features: With functional indicator light, use, debugging more intuitive and convenient. High strength aluminum alloy shells, wear-resistant and practical, suitable for various performance scenes. Using a combination of frosted and brushed process, high grade atmosphere. The use of silicone pads, shockproof and skid resistant, suitable for various performance scenes. The use of high-grade metal frame MIDI port, longer plug life. Specifications: Powers supplys: 5V Color: black Material: aluminium alloy Item size: 115 * 53 * 33mm / 4.5 * 2.1 * 1.3in Item weight: 160g / 5.6ounce Package size: 150 * 100 * 50mm / 5.9 * 3.9 * 2.0in Package weight: 250g / 8.8ounce Packing List: 1 * USB to MIDI Host Package List: 1 * USB to MIDI Host