low noise microphone 1.made of 100% silicone 2.anti-heat for safety use 3.Factory ... time2-5 daysOEM/ODM designSupportedFeatures1, Wireless2, Portable3, Self-standing4,No External Power NeededTrade TermEXW,FOB,CIFPayment TermCash,T/T,Western Union,PaypalShipping ... handphone support,cellular phone shield .4,Witty Design: Wireless, No power needed .Self standing .5,Personalized: Offer ODM/OEM service .