The used Lectrosonics 400 Series Wireless Kit – Freq 21 (No Mic) is a premium wireless-audio solution made up of the Lectrosonics LMa Frequency-Agile Transmitter (Freq. 21) and UCR411a Digital Hybrid Receiver (Freq. 21) Key features include:

• 256 user-selectable frequencies over a 25.6MHz range

• Internal RF-spectrum analyzer

• Excellent value