How can we hear the sound next door with a cup! Thank you
I had a security guard in Shenzhen took a 800 yuan imported from Japan to listen to the wall, there is a 1,100 Taiwan's imports, do not know the effect is good, anyway, I bought is very good, I have a recording
I have heard, is in the hotel, as long as you take the wall to listen to the hotel
Of course, Taiwan is enough to use, made no, noise is very heavy, can be 50 cm thick wall, and very clear to know, next door issued by the movement, and some
