
features
- USB class compliant for Win XP and Mac OS X, supporting hot plug. No driver needed.
- The working band is 2.4GHz ISM.
- USB <--> RF transmission mode.
- Duplex wireless MIDI data transfer.
- Manual switching for one-to-multi communication (auto finding and selecting).
- Low power consumption, high speed, powerful error correction with automatic notes-off and on-line detection.
- Maximum wireless transfer distance is 80m(262 feet) without obstacle.
- 64 radio channels for MIDI data transfer, with manual or automatic radio channel setting mode.
- When connected to computer via USB, this product will be automatically recognized as the “USB Audio Device”, fully support MIDI data stream, compatible with Cakewalk, Sonar, Cubase etc.
- Automatic searching, manual or automatic channel setting and other system function can be controlled by the special MIDI SysEx command from USB.
- Powered and upgrade program via USB.
- Indicator for signal and power.
- U-CTRL ? functions added
specification
- USB port x 1
- Power/Signal LED x 1
- USB bus powered
- USB Class-compliant for WIN XP and Mac OS X
- Dimension (W x D x H)?73 x 23 x 6 mm
- Weight?12g"
I'm curious if you can use the WIDI-X8 hub below in stand alone mode. The idea is you have your synths hooked up to the X8 and the XU hooked up to a tablet.

"The world’s first duplex Wireless MIDI System
Transmission range up to 80M in environments without obstructions
Low power consumption, high speed, error correction ability
Powered by 2 ‘AA’ size batteries
Built-in USB MIDI interface
specification
- Operates on 2.4GHz ISM license-free band
- Duplex MIDI transportation (MIDI In/Out)
- Up to 64 adapter pairs can be operating at the same time. There are 64 working channels can be selected manually or automatically
- Flexible connection of MIDI and USB ports. Three modes (USB RF / MIDI RF / USB MIDI) can be selected
- Plug-and Play USB MIDI on Windows XP and MAC OSX
- Powered by 2 "AA" size batteries (battery life up to 20 hours) or USB bus-powered"