Based on the award winning S4000, the new Trantec S4.4 UHF system boasts a multi-function receiver, 4 switchable frequencies and the latest PLL quartz tuning technology, making it the ultimate choice when up to 4 frequencies are required. It can be used licence free in the UK on channel 70. The S4.4 system is available in Lapel and Aerobic versions, which can be switched for use with a musical instrument, plus a Handheld with a dynamic capsule.