User Manual
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-  Do not expose the instrument to rain or moisture, to avoid fire and/or electrical shock. 
-  Keep the instrument away from electrical interface sources, such as fluorescent light and 
electrical motors. 
-  Keep the instrument away from dust, heat and vibration. 
-  Do not expose the instrument to sunlight. 
-  Do not place heavy objects on the instrument; do not place containers with liquid on the 
instrument. 
-  Do not touch the connectors with wet hands 
CONNECTION 
Please note: The button on the main adapter is a reserved function, not a power switch. Do 
not press it during normal use, so as to prevent the device from being switched to the test mode 
and as a result unable to be used normally. 
WIDI Master adds wireless Bluetooth MIDI transmission and reception functions to music 
equipment with MIDI DIN connectors. This product consists of two parts: one is the main 
adapter, which is used to obtain power from MIDI OUT DIN connector and send or receive MIDI 
messages wirelessly. The other is a sub adapter, which is used to transmit MIDI messages to the 
MIDI IN DIN connector of the MIDI device. 
Main adapter Sub adapter 
WIDI Master can be used with MIDI DIN connectors of MIDI devices that apply to the MIDI 
standard, such as: synthesizers, MIDI controllers, MIDI interfaces, keytars, electric wind 
instruments, v-accordions, electronic drums, electric pianos, electronic portable keyboards, 
audio interfaces, digital mixers, etc. At the same time, WIDI Master can also connect devices and 
computers with a built-in BLE MIDI feature, such as: Bluetooth MIDI controllers, iPhones, iPads, 
Mac computers, Android mobile phones, PC computers, etc. 






