Product Description for the AKG WMS 45 PRESENTER SET The sound of your voice perfectly reproduced by the Perception Wireless Presenter Set: the inconspicuous CK 99 lavalier microphone clips on quickly and easily, and provides optimum intelligibility for theater performances, presentations, or talk shows. Requiring little attention, it allows you to focus 100% on your presentation. The package contains an SR 45 receiver, PT 45 bodypack transmitter, universal power supply with US/UK/EU adapter, CK 99 L lavalier microphone, and one AA size dry battery Features 30 MHz selection bandwidth (depending on local frequency plans) 8 hours of operation with a single AA size battery Speech optimized CK 99 lavalier microphone Compatible with all AKG MicroMics Low battery indicator Smallest and lightest bodypack transmitter in its class Brand AKG Weight 5.0000 Plug-in Processing No Watts No