Works on wooden walls, doors, windows, steel plates, etc.
<br />Materials: Molded Plastic with Internal Sound Amplifier
<br />Power: Built In Rechargeable Battery
<br />Highly Sensitive, carefully adjust audio slowly, as not to cause discomfort to your ear-buds
<br />Dimensions: L:43 x Diameter:36 (mm)<p> <b><b><img src="https://contestimg.wish.com/api/webimage/585b6ab43d6ce60c654b1d45-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/585b6ab43d6ce60c654b1d45-1-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/585b6ab43d6ce60c654b1d45-2-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/585b6ab43d6ce60c654b1d45-3-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/585b6ab43d6ce60c654b1d45-4-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/585b6ab43d6ce60c654b1d45-5-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/585b6ab43d6ce60c654b1d45-6-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/585b6ab43d6ce60c654b1d45-7-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/585b6ab43d6ce60c654b1d45-8-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/585b6ab43d6ce60c654b1d45-9-large.jpg></b></b></p>