20 Most Recent Sennheiser Evolution 100 G2 (SEN-EW152G2) Professional Headset Questions & Answers

Radio Shack

Warranty? If not, open it up and look for unattached wires. If there's none, look for parts that look damaged, usually brown-ish. if there's any, they need to be replaced. Might get lucky and find parts

Do you have shoes on? Do you have grounding problems in this building?
It sounds like a lack of proper grounding ... try plugging the amplifier into a different power plug and see if the problem goes away or its characteristics change.
Put some shoes on if you are in bare feet. Sneakers. Something with a rubber sole.
It's not a bad cable from your description, it's an electrical pathway problem, where a poorly grounded connection is created when you touch the bodypack.
I am assuming you are merely "touching" the bodypack, as you describe ... not tapping on it ... if you are tapping on it to get the popping noise, then there could be something loose inside the bodypack, teensy weensy stuff.

For audio expertise and PA system help with feedback and noise, try our new DVD "PA Systems for Small Groups" at www.rexark.com

See user manual page 17 and page 30 of manual. HD 450BT (sennheiser.com)

You can contact Sennheiser customer support by visiting their website and clicking on the "Get in Touch" button. You can also find an authorized Sennheiser service partner, submit a warranty or repair request, and find spare parts and accessories on their website. Alternatively, you can use the chat or form on their website to get in touch with Sennheiser customer service for all your questions about their products, repairs, spare parts, and accessories. Contact ' Sennheiser (sennheiser-hearing.com) Support - Sennheiser

You have to wire the plug to eliminate the voltage sent by the sound card. I can't remember if it's the tip or the sleeve, so you'll have to verify with a volt meter. Use a 3 position plug to solder to the mic wires, just don't connect the wires of the mic to the one that has voltage on it

Yes I had the same problem. Under some circumstances the MM100 freezes (didn't figure out when just yet). It's a software issue inside. Solution: open left speaker (the side with the charge connector and hence the battery). Discharge the battery (or just short circuit for half a second) and it works again. Sennheiser should built a reset button on these things.

Just put your problem on social media, including the brabds abd they will answer, i know these kind of cimpanies. Moest just ignore you but hate bad publicity. ain't you have got a forum for consumerproblems?

yes you can buy everywhere an adapter for it