Wireless UHF Musical Instrument Transmitter Receiver Audio Kit System
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Specification:
Frequency Range : UHF 680MHz ~ 730MHz
Channels : 50 Channels ( Multiple devices work together without interference )
Battery : 450mAh Li-polymer
Working time : 2~4 hours（For Reference only, it may vary from different volume and different occasion usage）
Volume Control : + -
Plug Type : 3.5mm Jack and 6.35mm Jack ( Adaptable )

Instruction For Changing Frequency:
Step 1: Turn off both the transmitter and receiver, then turn on the transmitter first, when the indicating light start to flash, immediately turn it off and immediately turn it on again(this step must be quick)
Step 2: You will see the indicating light keeps flashing, then turn on the receiver.
Step 3: Turn off the transmitter and turn it on again and frequency changed.