AKG has launched its IVM4500 IEM In Ear Monitoring System at NAMM. The IVM4500 IEM “supports users with high quality audio and radio performance”. We’re not sure how that effects users who are crap at singing or playing, but anyway… (oh–hang on, they mean the product has high quality performance… sorry). The IVM4500 IEM offers a highly diversified system, which includes high-end radio electronic and a manual radio signal attenuator for more RF dynamic; enhanced frequency setup to show the number of free channels and supported TV channels and quick frequency change functions to support monitors, all within a rugged housing. Battery life for the IVM receivers has been tested up to 10 hours. Included in the system are the SPR4500 IEM diversity receiver, the SST4500 IEM transmitter, which is adjustable to 10, 20, 50 and 100 mW depending on country laws; and the IP 2 ear-channel headphones. The SPC4500 antenna combiner, the SRA2 W directional antenna and the RA4000 W omni-directional antenna complete the package.