Operating Band 2.4GHz frequency band.Automatic pairing connection, plug and play, compatible with all standard 5pin MIDI device interfaces.Can be used as a MIDI transmitterreceiver, you can purchase another product of the same kind. If the two products are turned on in different gears, they can automatically establish a connection, thereby replacing a midi cable and realizing midi communication between the two products.Delay Less than 3ms.Effective range less than equal 15 meters transmission distance.Use time about 25h.Power supply builtin rechargeable battery, can be via TypeC.Supports firmware update.ColorBlackMaterialplasticPackage Contents SK7 MIDI AdapterOnly the above package content, other products are not included.Note Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 13cm.