KH Microphone 2 pc System Set with 2 Transmitter,1 receiver, Best for Presentation Microphone

ENERGY-SAVING DESIGN Up to 20 hours of working time with 2 AA batteries The bodypack LCD screen will automatically dim without operation in 3 seconds. The working time can be up to 20 hours with a power supply of 2 AA batteries (not included), and this depends on the quality of the battery. Up to 328ft working range The UHF band range of Kimyah KY-6208 is 540-590MHz, including 200 channels, spaced 250KHz apart. The system's working range can be up to 100 meters (328ft). One-key auto-searching clean frequency Long-press the 'SET' key of the A/B channel, the receiver will auto-searching the cleanest frequency according to the current environment. There is a total of 3 easy ways to pair up the system's frequency as to the user manual.