Frequency: 433.92m Hz
<br />- one transmitter with 4 receivers 
<br />- Dimension: 105 x 46 x 13mm (transmitter); 50 x 36 x 11mm (receiver); 75 x 29 mm (base)
<br />- CR 2032 battery for receivers   included
<br />- aaa1.5v x 2 batteries not included 
<br />Working distance: - 30 ~ 40 m in open space 
<br />- LED flashlight function included. 
<br />
<br />Package includes:
<br />1 x transmitter 
<br />4 x receivers 
<br />1 x User Manual 
<br />6 x button stack
<br />1 x base transmitter 
<br />4 x 3M adhesive 
<br />4 x keyrings
<br /><p> <b><b><img src="https://contestimg.wish.com/api/webimage/5989b064e7982f2da1b52efb-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5989b064e7982f2da1b52efb-10-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5989b064e7982f2da1b52efb-11-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5989b064e7982f2da1b52efb-12-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5989b064e7982f2da1b52efb-13-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5989b064e7982f2da1b52efb-14-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5989b064e7982f2da1b52efb-15-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5989b064e7982f2da1b52efb-16-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5989b064e7982f2da1b52efb-17-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5989b064e7982f2da1b52efb-20-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5989b064e7982f2da1b52efb-21-large.jpg></b></b></p>