Basic elements:1) Far infrared heating system inside 2) Thermostat3) Safety function: it will be turned off automatically at the set time.4) Leatheroid cover5) Logo embroidered on it Optional stone: jade stone, germanium stone or tourmaline, that means customer canselect each kind of stone, or mixed Optional function (you can select the mattress with one of below functions)1) Far infrared ray radiant heating system 2) Far infrared ray radiant heating system, + extra negative ion function and negativepotential3) Far infrared ray radiant heating system, + extra super long wave Optional size:2m x 1.5m (double)or you will have your size, we will make it under your requirements. The effect of Far-infrared Rays on our human body: FIR causes resonance with water molecules. It ionizes and activates water moleculesin our cells and blood thus improving our blood circulation and health condition,and it improves oxygen level in our body. It can be aborted and produce warmthand harmonize with the natural life force released by the human body to enhanceresonance absorption; the ability to penetrate deep into the human body. Therefore,it can be applied in many products, especially the clothes that are notonly light but also thin and suitable for sports or exercise, such as the clothesfor mountain climbing, skiing, and scuba diving, etc. Super long wave:N pole and S pole change very fast almost 50~60 time per second. And the wavelengthis from 5,000,000~6,000,000. It is same as natural wave such as solar radio-frequencyradiation and terrestrial magnetism wave, so it can pass through anythingand change periodically. It is the longest magnetic field in the universe. So,it can stimulate inner cells and have rebirth force of body cells. It has lotsof effects such as promoting metabolism, blood circulation, and making normal nervesystem. Also it has excellent inflammation functions, balancing acidity, promotingaction of white and red blood corpuscle cell. Negative ion : Air filtration Benefits on breathing system, blood circulation system, nerve system, metabolism,immunityEffect of jade stone:Jade is good for your health. It may emits negative ion to eliminate harmful wastetoxins from your body, having good treatment effect against high blood pressure,diabetes, circulating system troubles, heat disease, and women's diseases. It can make the five viscera and the six entrails (of gall bladder, stomach, smalland large intestines, the paunch, the bladder and the bowels) strong. Germanium stone:Strengthens immune system, improves blood circulation, boost up body energy, discardstoxins especially heavy metals such as mercury and lead. Helps to enhance the ability of blood stream to take in oxygen by more than 1.5 times.Increases the rate of metabolism and delays the aging process. producing area:China payment:T/T or L/C supplying capacity:50,000pcs/month