There is a switch with an antenna next to the toilet in the hotel bathroom, what is the function

You should be talking about something like this:

On the left is the bidet, also known as the women's toilet, which is used by women to clean the lower body, and the faucet is special. >>>More

Both of these conditions are very important, as for which is better, it depends on personal preference, if you value the use of the bathroom more, then choose the bathroom, if you like the sun room, then choose the one with a balcony.

The toilet is partitioned, and it is recommended that about one meter is the most appropriate. >>>More

As far as Hui'an, where I currently live, it is relatively good, and Huili and Dapeng have not seen a bathtub.

Remove the floor tiles, lay 110 sewer pipes along the side of the wall, the slope of the sewer is 10 cm, wrap the pipe in the 20 cm square platform with a board, bend it to the water outlet position with a straight elbow, build a 25 cm high 1 meter 20 cm wide platform with cement red bricks in the toilet position, paste the brick back stage 28 cm high, press the toilet on it, the slope of the sewer pipe must be 10 cm, otherwise it is easy to block, do not throw the paper into it when sitting on the toilet, and look forward to adopting.