Nux AC80 Stageman II

This is a really 'small' portable amp with a great sound for acoustic (or any) guitar, no need to repeat all you can read on fora about it. I really love it and even use it at home to stream music via Bluetooth. The app is really great, so all in all no complaint. EXCEPT one thing: it is rechargeable but there is just no warning at all that the charge is getting weak. It does last "a while" (x hours ... depending on the volume and effects) but it just dies on you suddenly. Bam. I use it at home only but I imagine this is a serious issue live or in the street. I think they should have put some flashing light in a visible location (if anything, the charging indicator is in the back).
So yes, great everything and 'portable' but better prepare for this issue.