Ansmann Powerline 4.2 Pro Battery Charger and Tester in-ear amp Top-quality Neutrik input and output

Top-quality Neutrik input and output sockets

IEM's and effects pedals

Beam is about 30m

indication of incorrectly inserted batteries (wrong polarity)

Ansmann Powerline 4.2 Pro Battery Charger and Tester in-ear amp Top-quality Neutrik input and outputMultifunction Charger for 1 4 AA or AAA NiMH cells. This completely programmable charger will charge, refresh and test cells individually. It provides a true digital read out of capacity of individual cells in milli amp hours so you always know how much battery life is available. Variable refresh function for optimum battery life. Also includes 1 Amp USB charger for smartphones and USB devices, Apple, Samsung, Blackberry, etc. This charger is a "must"