The Swiff Audio Blackwing eliminates the need for the amp cord.
The Swiff Audio transmitter is place into the uke's pickup hole and turned on with the push of the button. The receiver is placed into the corresponding hole in the amplifier and the cord connecting the two is abandoned. The pickup speaks to the amp via Blue Tooth or some other magic. It connects the two up to 100 feet of distance.
The two devices are charged with a dual cord with a USB plug in. Lights indicate when they are charged.
The green circle lit indicates the transmitter is on. It is all quite intuitive. Works very nicely. If you use a pickup you ought to give these wonders a try.