A drummer here as well and as deaf as ...
These always used to get good reviews
https://www.amazon.co.uk/Generation-...RHTWHTS1BWGTRP
Whilst I was trying to find them came across this as well which seem to have good reviews ... if you wanted it out of the bag just get a short extension lead as well
https://www.amazon.co.uk/Portable-Sp...C73PK37YGMZ4RJ
The problem with anything non bike specific is going to be where to mount it though