You can turn on and begin to shake!

[bremen]

No idea what this is:

 

https://www.ebay.co.uk/itm/316037848911?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=3yayhehcsfc&sssrc=4429486&ssuid=&var=&widget_ver=artemis&media=COPY

 

"Guitar for Phone / for T4V71210

Features:1.The guitar is the instrument interface adapter adapter and guitar and bass tone mobile software an easy to use
2.adapter into the headphone jack
3.insert bass guitar adaptation
4.stresses headphones or external speakers into the headphone jack adapter
5.You can turn on and began to shake"

[paul_5]

I’ve got one for my 17 year old iPad- plugs into the headphone jack then plug your bass and headphones into the adaptor and run your software (I use GarageBand on there) - useful practice tool.

 

Mine doesn’t ‘shake’ though!

[bremen]

You'd never know that from the description!

So like a vox amplug, then?