Swiff Audio WX503 Guitar Digital Wireless System Transmitter Receiver For Acoustic Guitar/Electric Guitar

5.8G wireless transmission transceiver system
No noise when transmitter is pulled from the instrument or touched.
5200mah super-capacity battery that can be used to charge mobile devices
Type-C high speed charging Case

Specifications:
Channel : 4 Channel
Receive sensitivity : <-110dBm @20dBsinad
Signal to noise ratio : >90dB
Delay : <5ms
System frequency response : 20-20KHz
Battery : 5.0V (Lithium polymer battery) 5200mAh(19.2Wh)
Input Output : IN 5.0V -2A OUT 5.0-2A
Transmission Distance : Over 30m-50m