Click to check out more specific devices that are compatible with K037B ... the FIFINE WIRELESS LAVALIER/HEAD-WORN MICROPHONE FOR PLUG & PLAY SETUP WITH SPEAKER, CAMERA-K037B, but I have one question. If you want to purchase a whole … I have lost my manual for The KO37B microphone is it possible to see the manual on the internet or can I buy another one thank you. Perfect for Live Performance-K037: Wireless Lavalier Microphones - FREE DELIVERY possible on eligible purchases Toshiba E-Studio 520 600 720 850 281c 351c 451c 352 452 AS 400 Printer Solution Owners Guide ; The old model receiver, which used frequency that was over 600 MHz, had been out of stock and discontinued. Please leave a note of your currently-using FIFINE microphone model number (listed above) & its frequency range (is it 565-584 MHz). FIFINE Accessory Website. Buy FIFINE 20-Channel UHF Wireless Lavalier Lapel Microphone System with Bodypack Transmitter, Mini XLR Female Lapel Mic and Portable Receiver, Quarter Inch Output. Works with only FIFINE wireless transmitter of K031B or K037B (that uses frequency range of 565-584 MHz). This is FIFINE sub-website for selling ONLY FIFINE ACCESSORIES, including the types listed above.