specifications 1.size 20.3*3.9*4.1 weight:220g 2.chargeble way:110v-220v (built-in battery) 3.use time:continute use for 3 hours 4.waterproof 5.take the super medical silicone for the up part,and soft material for the down part,have the comfortable touch sensation of all parts More detail, pls feel free to contract me! We accept wholesale and retial
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