The new GLX-D+ Dual Band Wireless Instrument System features the precision-crafted BETA®98H/C flexible gooseneck microphone for brass, woodwind and percussion applications and the GLXD4+ tabletop receiver. The perfect combination of the automatic frequency management with the new Dual Band Technology provides reliable and consistent performance, while Shure proprietary Lithium-Ion rechargeable batteries provide up to 12 hours of use. Go wireless without complication.