The Boss WL-20L is an easy, lightweight way to go fully wireless while playing your acoustic guitar. Simply plug the receiver into your guitar amplifier or PA and the transmitter into your guitar. The WL-20L has a built in rechargeable battery which will last you 12 hours (transmitter) and 10 hours (receiver).
This unit is fully functional and includes the original box and charging cable. The box may be missing some of the original packaging.