Best Nady Headsets

*Please note* adding an additional transmitter does not allow you to use them simultaneously!When adding an additional U-1100 transmitter it is to give you the flexibility of using varied styles of transmitters for your U-2100/1100 system.Replacement/ extra Wireless HeadmicTransmitter for Nady U-1100 or U-2100 systems (Make sure to order the right band!) The Nady U-1100 HM-3 is the wireless headset microphone to be used with the U-1100 (single transmitter) or U-2100 (dual transmitter). Ideal for both music, speech, or for interview-style applications, the U-1100 HM-3 features high quality components and delivers clear, crisp audio every time. Do I need Band A or Band B? The U-1100 and U-2100 systems operate in the UHF range using one or two banks of 100 channels: Band A: 480-504.75 MHz or Band B: 505-529.75 MHz A band A transmitter can only work with a band A receiver (either a U-1100 Band A receiver or channel#1 of any U-2100 receiver) A band B transmitter can only work with a band B receiver (either a U-1100 Band B receiver or channel#2 of any U-2100 receiver) Here is how to determine the operating band of a system component: A U-1100 receiver can either be Band A or Band B. To find out which band your receiver is operating on, look at the label at the bottom of the receiver. A U-2100 dual channel receiver is always Band A on channel 1 and band B on channel 2, so there is only one kind of receiver. Choose a Band A transmitter (handheld microphone or bodypack) to pair with Channel 1 of the U-2100 receiver and Band B to pair with Channel 2 of the U-2100 receiver Microphone Transmitter: Unscrew the battery cap to uncover a silver sticker with the letter A or B indicating which band it operates on. Bodypack Transmitter (LT or GT): Open the battery compartment and look for the letter "A" or "B"