Musical Instrument & Vocal Microphones
the t.bone Tour Guide Micro RX
the t.bone Tour Guide Micro RX, UHF Tour Guide System Receiver, Wireless on-ear headphones, Audio frequency range: 300 Hz - 3400 Hz, Radio frequency response 823-832 & 863-865 MHz, Integrated Li-Polymer (3.7 V, 200 mAh) battery with a runtime of up...
https://www.bizrate.co.uk/musicalinstrument_vocalmicrophones/the-t-bone-tour-guide-micro-oid31078503563.html