Change battery on ATW-T210a

copy and paste

https://docs.audio-technica.com/us/system9_en_web.pdf

NO smoking or ignition sources within 30 ft. The fuel line to the filter may be under pressure so remove the line slowly and catch all leaking fuel. Filters are directional so install following the direction of fuel low arrow.

change the bios battery

Sylvania mp3 player lost your cd here is the softwear for you to download

You can try an overnight charge. If that fails, the usual remedy is to return the device for service under warranty. Failure to accept a charge suggests a bad battery. I find no DIY instructions identifying a change of its battery. As to the driver failure, this is likely a compatibility issue. You have not identified your operating system. The user manual may identify which OS the device is compatible with. Try installing the driver with the device disconnected, reboot, plug in the device, reboot again. I believe the device worked with Windows 7 or XP but am uncertain if it worked with other OS.

try changing frequencies, also make sure that the mic and the reciever are on the same frequency, what it sounds like to me is that it is set to the adjacent frequency, also be sure the batteries are fully charged.

Normally the mics and receivers are sold as a unit but replacement mics can be bought separately.
However the ATW-R11 has been discontinued so may now be hard to find.

This model has 20 available frequencies so you should be able to change frequencies okay.
NOTE - you will require a license for these frequencies

I don't think is possible. But its entirely my point of view,as i feel technically its not possible.

Try checking your user manual provided for microphone. That may offer you better guidance.

No, the ATW-R200 series are fixed-frequency units.
Short of soldering new crystals in, you're stuck with the frequency you've got.

Audio Technica

hello firstable you need to know at how many ohms is the base unit then in microphone change the impedance transformer to match the low or high frecuency you want......saludos