Samson CB99 Concert 99 Frequency-Agile UHF Beltpack Transmitter (D: 542 to 566 MHz) User Manual | 84 pages | Also for: CH99 Handheld Transmitter with Q8 Dynamic Microphone Capsule (D: 542 to 566 MHz), Concert 99 Wireless Guitar System with GC32 Guitar Cable (Band K, 470 to 494 MHz), Concert 99 Presentation Frequency-Agile UHF Wireless System (D: 542-566 MHz)