Characteristic: 1. Economical, it is made from poly instead of wooden or plastic. The cost of poly model is around RMB 1, 000. But the cost of plastic model is the double to more than ten times of the poly model. 2. Flexible, compare to the products in stiff shape made in plastic, wooden or aluminum alloy, the sound box made from poly can be made in all kinds of color and lifelike shape be available in the living and nature shape such as stone shape, mushroom shape, stub shape, elephant shape, giraffe shape, running horse shape, bear shape and panda shape etc. 3. Enjoyable and applicable, comes from nature, the art stone sound box is not only for the music and sound world, but also an enjoyable decoration which can be widely used in home, park, golf links and tour scenery etc. 4. Ovenproof, cold-resistant & UA-resistant, sound box made in poly will have no distortion and breakage under the temperature of 50~80 centigrade. Also it has the characteristic of no fading under UA. 5. Waterproof, antisepsis & shockproof. Be workable in raining weather. Without problem under the acid, alkali and breakage. Light: LED Speaker input voltage(V): 70/100 Speaker power(W): 5/10/20 Sensitivity(Db): 91± 3 Freq response(Hz): 80-16K Weight(kg): 6± 0.6 Size(mm): 380*380*460