1.V2.1+EDR bluetooth 2.wireless 3.built-in li-ion battery 4.transmission:up to 10M mini wireless bluetooth portable speakerown designown productionas your request to produce Specification:bluetooth speaker 1.single-channel portable speaker2.supports iphone,ipad,notebook,table pc,ect(include all device with bluetooth function)3.powered by built-in lithium battery 4.quick -charging function to ...