Get closer to your sound. The LD Systems MEI100G2 Double Wireless In Ear Monitoring System lets you hear your music in perfect detail. The sound quality is hard to beat with less than 1% total harmonic distortion and a superb signal to noise ratio of 80 dB. You can also trust the Wireless System to remain reliable at events with an operating time of over 12 hours dependent on the batteries which are used. The huge range of 96 UHF channels lets you use the two transmitters with minimal crosstalk and fantastic signal transmission.