The band A & B WMS40 Mini Dual Instrumental Set Wireless Microphone System from AKG is a true plug and play wireless solution that provides clear audio sound. It can be used with guitar and bass instruments, headsets, and instrumental mics in applications to capture audio for live stage, rehearsals, hotels, gyms, and more. In addition, it has an extremely long battery life of 30 hours on a single AA battery, and saves money in day-to-day operation. Each of the two included PT40 pocket transmitters provides a professional 3-pin mini-XLR connector that is also compatible with AKG's MicroMics from line to mic level. The WMS40 is a fixed frequency system and the receiver has two 1/4" output connectors. Two MKG L-instrument cables and a universal power supply are also included.