RCF PX 4116 wireless microphone 4000 series has 144 individual channels. The channels are divided into 12 groups, each with 12 different frequencies. The 4000 series can work with 16 individual channels active at the same time. The RX 4016 receiver allow getting a very wide radio cover.

FREQUENCY RESPONCE (-3DB): 50 Hz ÷ 50 kHz
AUTO SCAN FUNCTION FOR EASY OPERATION
RF SIGNAL SWITCHING DIVERSITY CONTROL
PRODUCT DIMENSION(W x D x H): 210 mm/8.27 in x 155 mm/6.1 in x 44 mm/1.73 in