Mobile phone amplifier (Hinoki)

I have always been troubled by the habit of listening to music on my mobile phone. That is, the sound is too low to hear directly with the mobile phone, and the sound always feels ethereal and does not know where it comes from; it is really troublesome to connect the speaker or bluetooth but often cannot connect or need to wait for charging when there is no power. When I visited the World Trade Fair last time, I saw a manufacturer selling wood-made amplifiers for mobile phones. I thought it was very convenient, but when I asked about the price, I was a little scared (the larger NT2100, the smaller NT1680). I thought about the current prosperity. Poor, you can't spend money indiscriminately, go home and make one for yourself, so such a new thing was born! The design of the product is very simple, just a rectangular speaker, but the material is very solid. It is made of Japanese cypress, with a layer of beeswax wood oil on the outside, and no oil on the inner layer, so that you can smell the fragrance of wood. No screws or nails were used, just the beautiful texture of the wood itself! When using, just pull the end of the phone with the speaker into the opening of the amplifier (it's really that simple..), you can obviously feel that the sound has become a lot louder, and the sound has become concentrated and powerful. You need to lower the volume button 3-4 times to not feel too loud, and at the same time achieve the effect of saving power, which is really practical! You can use the link below to watch and listen to the actual test status https://youtube.com/shorts/QKV9QMcbJ2g?feature=share If you like it, I will make a few more. The price is not 2100, nor 1680, 800 meat, 500 meat, only 399, 399, 399 (very important, so I have to say 3 times) Note: (the width of the mobile phone cannot be less than 6 cm)