The kool sound uhf216 dual uhf wireless mic system offers uncompromising professional performance. The system is ideal for the stage bound vocal performer who needs freedom to roam with a quality of sound you'll find hard to beat for the price. The uhf216 utilises advanced filtering technology to help eliminate interference. The system can be switched between 16 frequencies per channel, allowing extra units to be used in conjunction. The transmitters feature low voltage circuitry to help extend battery life and to increase sensitivity for an all round, excellent value wireless microphone system.