The subzero wireless in ear monitor system is ideal for musicians presenters and performers who need reliable high quality sound monitoring on stage'. '.strtoupper('w')hether youre a vocalist in a band a live show host or youre performing to a backing track the subzero wireless iem system ensures you can hear exactly what you need to hear whilst remaining free of wires'. '.strtoupper('w')ith six adjustable channels running on license free frequencies between 863.1 864.9 mhz this system ensures a clear interference free signal wherever you are'. '.strtoupper('t')he high contrast screens on both the transmitter and receiver make checking your vital information straightforward even in low light scenarios'. '.strtoupper('h')igh and low power settings on the unit offer a range of up to 60 metres and the intuitive infrared pairing system offers quick and easy setup'. '.strtoupper('t')he subzero iem system is compatible with an unlimited number of belt packs you can expand your system easily at any time with the individual belt packs available separately here'. '.strtoupper('i')f you know that youll need more packs to begin with check out the cost effective custom bundle here allowing you to add as many belt packs as you need whilst making a saving!