Specifications:
<br />1. All Around
<br />Carrier frequency: VHF 220~270MHz
<br />Frequency stabilization: &lt; 20ppm
<br />Dynamic range: more than 0.5%
<br />Frequency response: 40Hz~18Hz3dB
<br />Audio output level: -400mV~0~400mV
<br />                              mix out -200mV~0~200mV
<br />Temperature range: -10  to 50 
<br />Battery voltage: 1.5V Batterynot included
<br />Battery Type: 1.5V Batterynot included
<br />Battery lifeh: 30 hours
<br />Noises control: eliminating noises
<br />Manipulate range: radio 200
<br />2. Fixed Receiver
<br />Power supply: AC 220V/50Hz
<br />Consume power: 3W
<br />Signal/nose ratio: &gt;80dB
<br />Image &amp; spurious rejection: &gt;70dB
<br />Border upon channel rejection: &gt;70dB
<br />S/N: less than 12dBusind=20dB
<br />De-emphasis: 50 
<br />Package Includes:
<br />2x Microphones
<br />1x Wireless Receiver
<br />1x Power Adapter
<br />1x Cable
<br />1x Owner's Manual<p> <b><b><img src="https://contestimg.wish.com/api/webimage/58c1a276f5b67a74e4df91af-large.jpg"><img src="https://contestimg.wish.com/api/webimage/58c1a276f5b67a74e4df91af-1-large.jpg"><img src="https://contestimg.wish.com/api/webimage/58c1a276f5b67a74e4df91af-2-large.jpg"><img src="https://contestimg.wish.com/api/webimage/58c1a276f5b67a74e4df91af-3-large.jpg"><img src="https://contestimg.wish.com/api/webimage/58c1a276f5b67a74e4df91af-4-large.jpg"><img src="https://contestimg.wish.com/api/webimage/58c1a276f5b67a74e4df91af-5-large.jpg"><img src="https://contestimg.wish.com/api/webimage/58c1a276f5b67a74e4df91af-6-large.jpg"><img src="https://contestimg.wish.com/api/webimage/58c1a276f5b67a74e4df91af-7-large.jpg"><img src="https://contestimg.wish.com/api/webimage/58c1a276f5b67a74e4df91af-8-large.jpg"><img src="https://contestimg.wish.com/api/webimage/58c1a276f5b67a74e4df91af-11-large.jpg></b></b></p>