To sing and play with wireless mobility, all you need to do is connect the GB 40 to your guitar or bass, put on the C 555 L head-worn microphone, and power up.
The SO 40 Snapon Transmitter allows you to make easily your most favourite mic wireless!

 AKG WMS 40 Pro guitar/vocal set - dual  wireless system with twin-receivers, one fixed frequency , 1x PT 40 Pro pocket transmitter, 1x GB 40 guitar-transmitter (works with one AA battery for up to 30 hours), SR 40 Pro dual non-diversity receiver in metal

 Подробности от производителя